Digitaler Receiver für 3m, 2m, 70cm by lqh68203

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									                            Motivation
                         Der Receiver
                         Der Digitalteil
                  Resultate & Ausblick




    Digitaler Receiver für 3m, 2m, 70cm

             Thomas Sailer, HB9JNX/AE4WA


21. Internationale Packet-Radio Tagung Darmstadt, 2005




        Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                                  Motivation
                               Der Receiver
                               Der Digitalteil
                        Resultate & Ausblick


Gliederung
  1   Motivation
        Wieso Digitale Receiver?
        AFE vs. DSP
        AFEs im Amateurfunk
  2   Der Receiver
        Highlights
        Schaltbild
        AD9874
  3   Der Digitalteil
  4   Resultate & Ausblick
        Die Platinen
        Implementierte Betriebsarten
        Die Spektrumanzeige
        Ausblick
              Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                                 Motivation
                                                Wieso Digitale Receiver?
                              Der Receiver
                                                AFE vs. DSP
                              Der Digitalteil
                                                AFEs im Amateurfunk
                       Resultate & Ausblick


Motivation




  Wieso Digitale Receiver?
      verschiedenste Modulationsarten mit derselben Hardware
      einfache Umschaltbarkeit der Modulationsart
      adaptive, steile, gruppenlaufzeitkonstante Filter




             Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                               Motivation
                                                 Wieso Digitale Receiver?
                            Der Receiver
                                                 AFE vs. DSP
                            Der Digitalteil
                                                 AFEs im Amateurfunk
                     Resultate & Ausblick


AFE vs. DSP



           Analoges                              Digitaler
           Frontend                           Signalprozessor
             AFE                                   DSP



    zahlreiche Artikel über DSP. . .
    . . . aber wenige über AFEs
        der Äther bleibt analog
        was das AFE kaputt macht, kann der DSP nicht mehr retten




           Thomas Sailer, HB9JNX/AE4WA           Digitaler Receiver für 3m, 2m, 70cm
                                Motivation
                                               Wieso Digitale Receiver?
                             Der Receiver
                                               AFE vs. DSP
                             Der Digitalteil
                                               AFEs im Amateurfunk
                      Resultate & Ausblick


AFEs im Amateurfunk



     SDR-1000 Kurzwellenreceiver (Gerald Youngblood)
         Bandbreite: einige kHz
     Universal Software Radio Peripheral, GnuRadio-Projekt
     (Matt Ettus)
         Bandbreite: 6MHz
  → 50kHz Bandbreite?




            Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                                 Motivation
                                                Highlights
                              Der Receiver
                                                Schaltbild
                              Der Digitalteil
                                                AD9874
                       Resultate & Ausblick


Highlights



     Frequenzplan: 1. ZF 45MHz, 2. ZF 3MHz
     Preamp, Mischer: BF998 (Dualgate MOSFET)
     1. LO: PLL+VCO ADF4360
     2. LO: VCO MAX2620, PLL AD9874
     Bandpass-Σ∆-Wandler AD9874




             Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                                                                                                                                                                                                          Motivation
                                                                                                                                                                                                                                                                                                                                                                             Highlights
                                                                                                                                                                                                       Der Receiver
                                                                                                                                                                                                                                                                                                                                                                             Schaltbild
                                                                                                                                                                                                       Der Digitalteil
                                                                                                                                                                                                                                                                                                                                                                             AD9874
                                                                                                                                                                                                Resultate & Ausblick




                                                                                                                                                           +15V
                                                                                                                                              R141

                                                                                                                                                   47k




                                                                                                                                                                                                                                                                                                                                                                                                                                                                     R161 +15V
                                                                                                                                                                         BSS84




                                                                                                                                                                                                                                                                                                                                                                                               IC100P4 AD5263BRU20
                                                                                                                                                                         T141                                                                                                                                                                                                                                                            R152 +15V
                                                                                                        10k                                    T140                                                                                                                                                                                                                                                                               20
                                                                                                                      SWVHF                    BSS123




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1k
                                                                                                                                                                                                                                                                                                                                                                                                                                         39k

                                                                         GND
                                                                                                                                                                                                                                                                                                                                                                                                                                  19                                                     C161
                                                                                                        R140                                                                                                                                                                                                                                                                                                                                                                                                                                                                            GND




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       GND
                                                                                                                                                                                                                                                              1k




                                                                                                                                                                                                                                                                                                                                                                                                                                           GND
                                                                                                                                    GND                                                                                                                                                                                                                                                                                           21
                                                                             IC100P1 AD5263BRU20                                                                                                                                                                                                                                                                                                                                                                                         100n




                                                                                                                                                                                                                                                                                                                                                                                                                                         R151
                                                                                                                                                                                                                                                                                                C131




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   L160 220n




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              L171 180n
                                                                                                                                                                                                                                                                                                                                                                                                                                                       10k
                                                                                                                                                                                                                               GND                  R131




                                                                                                                                                                                                                                                                                                              GND
                                                                                                                       R101 +15V




                                                                                                                                                                     R110
                                                                                                                2                                                                                                                                                                                                                                                                                                                                        C150
                                                                                                                                                                                                                                                                                                100n                                                                                                                                                                                                                                      GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        GND




                                                                                                                                                                                                                                                                                                                                                                                                                                                                     GND
                                                                                                                                                                                                                                                                                                                                                                             1.2k || 1.8p




                                                                                                                                                             1k




                                                                                                                                                                                                                                                                                           470n
                                                                                                                                                                                                                               C120
                                                                                                                3      39k
                                                                                                                                                                            100n                                                                                                                                                                                                                                                                        220n                                                                                                  FI171




                                                                                                                                                                                                                                           1n
                                                                                                                                                                                                                                                                                                                                                                             GND
                                                                                                                                                                                                                                                                                                                                                                               GND




                                                                                                                                                                                       GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                       T150                                                                                                   96SMF45A30
                                                                                                                1      GND                                                                                                                                                                                                                                                                  FI151                                                      BF998                             C162                     R162                                                                                    C170




                                                                                                                                                                                                                                                                                           L130
                                                                                                                                                                            C110




                                                                                                                                                                                                                               R120
                                                                                                                                                                                                                                                    T120                                                                                                                                                                                                                                                                                                                                                            IFFILTERED
                                                                                                                                                                                                                                                                                                                                                                                            96SMF45A30




                                                                                                                                                                                                                                           100
                    GND




                                                                                                                                                           R114
                                                                                                                                       10k
                                                                                                                                                                                                                                                    BF998                                         D130                            C133
                                                                                                                           R100
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1n                       0                                                                                       100p




                                                                                                                                                                    220
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              GND




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                C163
                                                                                                                                              T100




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R163
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            56p
                                                                                                                 220n                                                                  4.7p                         LOOUT




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 C171
                                                                                                                                              BF998




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 1.2k
                                                                                                                                                                                                                                                                                                                                  1n




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        220p
                                                                                                                                                                                                                                                                                                  MMBV3401LT1                                                                                  GND
                                                                                                                              BBY40 VRFAGC




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       C160
                    18p




                                                                                                                                                                                                                                                                                                                                         C134




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     L170 *47n
                                                                                                                                                                                                                                                                                                                                220n




                                                                                                                                                                                                                                                                                                                                                                                                                                                                R160
                                                                                                         GND
                                C103




                                                                                                                                                                                                                                                                                                                                                           R133




                                                                                                                                                                                                                                                                                                                                                                                                                                         R150
                                  47n L102 C100                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            GND




                                                                                                                                                                                                                                                                                                                                                                     *1.2k
                                                                                                                                                                                                                                                                                                                                                     82p




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 10n
                                                                                                                                                                                                                                                                                                                                                                                                                                                 1.2k




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 220
                                                                                                                C102                                                                  C112                                                                                                                                                                                                                                                                                                           GND




                                                                                                                                                                                                                                                                                                                                                                                                                       *47n
                                                                                                                                                                                                                                  120n
                                                                                                                                                                                                                                                                                                                                                                               GND
                                                                                                                                                                                                                                                                                                                                                                                 GND                                                                                                                                         GND                                                                                    GND




                                                                                                                                                                                                            BBY40




                                                                                                                                                                                                                                                                                           10n
                                                                                                                                                                                                                       D111
                                                                                       2.7p




                                                                                                                                                                                                                                                                                                                                L131
                                                                                                                                                                                                                                                                                                          220
                                                                                                                                                                                                                                                                   C130
                                                                                                                                                                                                                     BBY40
                                                                                                                                                                                                                                                                                                                                              GND                                                                                                                                              GND                                                                                     FI170




                                                                                                                                                                                                                                                                                                 R130
                                                                                                                                                           C111
                                                                                                          L100




                                                                                                                                                                                                                                                                                                                                                              GND                                                                          GND                        GND                                                                                                              *DSF400.0A-51
                                                                                                                                                                    47
                                                                                                                                               D101




                                                                                                                                                                    1n




                                                                                                                                                                                                                                  L110




                                                                                                                                                                                                                                                                                                                                                                                                                       L150
                                                                                                                                                                                                           D110




                                                                                                                                                                                                                                         *2.2p

                                                                                                                                                                                                                                                   C113
                                                                                                                                             BBY40




                                                                                                                                                                                                                                                                   GND                                                                                                                                                                 FI150

                                                                                                                                                                               R111




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       1




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             5
                    47n L103




                                                                                                                                                                                                                                                                                                    GND                                                                                                                                *DSF400.0A-51
                                                                                                                             D100




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                GND
                                                                                                                                                                 GND                                                                                                                                                                                                                                                                                                                                                                        8                                             4
                                                                                                                                                      470n




                                                                                                                                                                                                                                                                                                                                                                                                           7
                                                                                                                                                                                                                                                                                                                                                                                       1




                                                                                                                                                                                                                                                                                                                                                                                                                               5
                                                                                                          120n




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               GND
                                                                                                                                                                                                                                                                                                                                      R132
                                                                                                                                                                            GND                                   GND GND                     GND




                                                                                                                                                                                                                                                                                                                                10n



                                                                                                                                                                                                                                                                                                                                                2.2k
                                                 IC100P2 AD5263BRU20




                                                                                                                                                                                                                                                                     IC100P3 AD5263BRU20




                                                                                                                                                                                                                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                                                         C132
                                                                                                                                                                                                                                                                                                                                                                                 8                                                          4




                                                                                                                                                                                                                                                                                                                                                                     GND




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             6
                                                                                                   +15V GND                         GND                                                                                                 +15V




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       2


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                3
                                                                                                                                                      L101




                                                                                                                                                                                                    47k
                                                                                                   23                                                                                                                                               5                                                                       GND



                                                                                                                                                                                                             R113




                                                                                                                                                                                                                                                                                                                                                                                                                               6
                                                                                                                    R102                                                                                                       R115                                                                                                       GND                                                                                                                                                                                                          GND GND GND




                                                                                                                                                                                                                                                                                                                                                                                       2


                                                                                                                                                                                                                                                                                                                                                                                                           3
                                                                                                   22                                                                                                                                               6
                                                                                                                                                                                                                                                                                                                                                                                       GND GND GND
                                                                                                   24                 10k                                                                                                      10k                  4
                                                                                                                                                                                                                                                                                                                                                                                               600 || 90nH
                                                                                                                                             10n




                                                                                                                                                                                                    10n

                                                                                                                                                                                                             C116
                                                                                                                                                      C101




                                                                                                                                                                                                                                    R116
                                                                                                               R103




                                                                                                                                               GND                                                     GND
                                                                                                   1k




                                                                                                                                                                                                                                              1k
                                                                                                   GND                                                                                                                                   GND
                                                                                                                                                       +15V




                                                                                                                                        R241
                                                                                                                                                                                                                                                                                                                                                              GND              GND          GND                            GND           GND
                                                                                                                                              47k




                                                                                                                                                                                                                                                                                                                                                                               C326
                                                                                                                                                                                                                                                                                                                                                              C327




                                                                                                                                                                                                                                                                                                                                                                                            C325



                                                                                                                                                                                                                                                                                                                                                                                                                           C324



                                                                                                                                                                                                                                                                                                                                                                                                                                         C323
                                                                                                                                                                   BSS84




                                                                                                                                                                                                                                                                                                                                                                        10n



                                                                                                                                                                                                                                                                                                                                                                                      1u



                                                                                                                                                                                                                                                                                                                                                                                                                     1u



                                                                                                                                                                                                                                                                                                                                                                                                                                   1u



                                                                                                                                                                                                                                                                                                                                                                                                                                                 1u
                                                                                                                                                                   T241




                                                                                                                                                                                                                                                                                                                                              +15V
                                                                                                   10k                                       T240                                                                                                       1k
                                                                                                                SWUHF                        BSS123                                                                                                                                                                                                               IC320                                                                                                           BAT64-04                            BAT64-04
                                                                       GND




                                                                                                                                                                                                                                                                                           C231                                                               1
                                                                                                                                                                                                                                                                                                                                                                       VOUT                  VIN
                                                                                                                                                                                                                                                                                                                                                                                                                           8
                                                                                                   R240                                                                                                                    GND                   R231
                                                                                                                                                                                                                                                                                                         GND
                               GND                                                                                                                                                                                                                                                                                                                                                                                                                                                             D311                            D310                                              VCC
                                                                                                                                                                  R210




                                                                                                                               GND                                                                                                                                                                                                                            2                                                            7




                                                                                                                                                                                                                                                                                                                                                                                                                                                C321



                                                                                                                                                                                                                                                                                                                                                                                                                                                              C320




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       C301
                                                                                                                                                                                                                                                                                           100n                                                                        SENSE
                                                                                                                                                                                                                                                                                                                                                                         FEEDBACK




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 +
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              68u
                                                                                                                                                          1k




                                                                                                                                                                                                                                                                                  470n




                                                                                                                                                                                                                                                                                                                                                                                                                                          10n




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               10n



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              10n



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               10n
                                                                                                                                                                                                                           C220
                                       BAR14-1
                               D102




                                                                                                                                                                                                                                                                                                                                                                                                                                                         1u



                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1u




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C311




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                100n
                                                                                                                                                                                                                                                                                                                                                                                                                                  C322




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  C313



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     C312




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     C310
                                                                                                                                                                         100n                                                                                                                                                                                 3                                                            6
                                                                                                                                                                                                                                                                                                                                                                       SHUTDOWNVTAP
                                                                                                                                                                                                                                        1n
                                                                                                                                                                                   GND




                                                                                                                                                                                                                                                                                                                                                              4
                                                                                                                                                                                                                                                                                                                                                                       GND            ERROR
                                                                                                                                                                                                                                                                                                                                                                                                                           5      GND              GND             GND                                                               GND                  GND
                                                                                                                              VRFAGC




                                                                                                                                                                                                                                                                                  L230




                                                                                                                                                                         C210




                                                                                                                                                                                                                                                                                                                                                GND
                                                                                                                                                                                                                           R220




                                                                                                                                                                                                                                                 T220
                                                                                                                                                                                                                                        100
                                                                                                                                                       R214




                                                                                                                                                                                                                                                 BF998                                      D230                                                                  LP2951CM
                                                                                                                                                                  220




                                  GND                                                                                                   T200                                                                                                                                                                                                            C328
                                                                                                                 220n                                                                         2.2p                LOOUT                                                                                                                                                                                                                                 IC300D                                               IC300E
                                                                                                                                        BF998
                                                                                                                                                                                                                                                                                            MMBV3401LT1                                                                                                                                                         8                               9                     10                         11
     X100                                                                                                                                                                                                                                                                                                                                               10n
                                                                                                         GND




               C104                   C203                              C200
                                                                                                                C202                                                                      C222




                                                                                                                                                                                                                                                                                                                                                                                            R325



                                                                                                                                                                                                                                                                                                                                                                                                                           R324
                                                                                                                                                                                                                                                                                                                                                           R326                                                                                 74ACT04M                                            74ACT04M




                                                                                                                                                                                                                                                                                                                                                                                                                     82k



                                                                                                                                                                                                                                                                                                                                                                                                                                   10k
                                                                                                                                                                                                                              18n
                                                                                                                                                                                                        BBY31




                                                                                                                                                                                                                                                                                 10n
                                                                                                                                                                                                                    D211




               1n                     8.2p                                                    1p
                                                                                                                                                                                                                                                                                                        220
                                                                                                                                                                                                                                                              C230
                                                                                                                                                                                                                  BBY31




                                                                                                                                                                                                                                                                                            R230
                                                                                                                                                       C211




                                                                                                                                                                                                                                                                                                                                                           100k                                                                                         IC300C                                               IC300B
                                                                                                        L200
                                          22n




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 R300
                                                                                                                          BBY31




                                                                                                                                                                  47
                                                                                                                                        D201




                                                                                                                                                                  1n




                                                                                                                                                                                                                              L210
                                                                                                                                                                                                      D210




                                                                                                                                                                                                                                     *2.2p

                                                                                                                                                                                                                                                 C213
                                                                                                                                      BBY31




            GND                                                                                                                                                                                                                                               GND                                                                                                                              GND                             GND                              6                               5                       4                        3                                               REFCLOCK
                                                                                                                                                                            R211




                                                                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 220
                                          L202




                                                                                                                        D200




                                                                                                                                                             GND                                                                                                                                                                                                                                                                                74ACT04M                                            74ACT04M
                                                                                                        18n




                                                                                                                                                180n




                                                                                                                                                                         GND                                GND GND                      GND




                                                                                                                                                                                                                                                                                                                                                                                                                                                                     VCC
                                                                                                                                                                                                                                                                                                                                                                                                                                                               C300
                                                 GND                                                         GND               GND
                                                                                                                                                L201




                                                                                                                                                                                              47k




                                                                                                                                                                                                                                                                                                                                                                                                                                                       GND
     VCC




                                                                                                                                                                                                           R213




                                                                                                                                                                                                                                                                                                                                                                                                                                                               100n
                                                                                            R180 VCC




                                                                                                                                                                                                                                                                                                                                                                                                                                                                           14
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  VCC
                                                                                                                                                                                                                                                                                                                                                                                                                                                        IC300F                                               IC300A
                                                                                                                                                                                                                                                                                                                                                                                                                                                              12                 IC300P13                               2                        1
                                                                                            470
                                                                                                                                    10n




                                                                                                                                                                                              10n
     C180

            100n




                                                                                                                                                                                                           C216
                                                                                                                                                   C201




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  GND
                                                 +15V




                                                                                                                                                                                                                                                                                                                                                                                                                                                74ACT04M                                            74ACT04M




                                                                                                                                                                                                                                                                                                                                                                                                                                                                           7
                         15



                                          10

                                                             7
                                  9




                                                                                                                                             GND                                                    GND
        GND                                                                                                                                                                                                                                                                                                                                                                                                                                                                 GND
                                            VL




                                                                                                                                                                                                                                                                                                                                      VCC33
                                  DIS



                                                                       VDD
                           SHDN




    SDA 11                                                                                              16      SWVHF                                                                                                                    IC400
                                                                                                                                                                                   VCC




                    SDA                                                      O1
                                  IC100CTRL                                                                                                                                                                                              LP2985AIM-3.3
                                                                                                                                                          +15V




    SCL 12          SCL           AD5263BRU20
                                            O2
                                                                                                        17      SWUHF                                                                                                               1
                                                                                                                                                                                                                                              VIN        VOUT
                                                                                                                                                                                                                                                                                            5
                                            GND




                                                                                                                                                                                                                                                        GND
                           AD0

                                  AD1




                                                                                                                                                       C181

                                                                                                                                                                  100n
                                                                       VSS




                                                                                                                                                                                                                                  4                                                         3
                                                                                                                                                                                   C400



                                                                                                                                                                                                    C401




                                                                                                                                                                                                                                                                                                         C410



                                                                                                                                                                                                                                                                                                                         C411



                                                                                                                                                                                                                                                                                                                                      C412



                                                                                                                                                                                                                                                                                                                                                       C413




                                                                                                                                                                                                                                              BYP               ON
                                                                                                                                                                                                              +
                                                                                                                                                                                             100n



                                                                                                                                                                                                           220u




                                                                                                                                                                                                                                                                                                                    1u



                                                                                                                                                                                                                                                                                                                                1u



                                                                                                                                                                                                                                                                                                                                                1u



                                                                                                                                                                                                                                                                                                                                                                  1u
                                                                                                                                                                                                                    C402




                                                                                                                                                             GND
                                          8




                                                                                                                                                                                                                                                    2
                                                                                                                                                                                                                              10n
                         13

                                  14



                                                             18




                                                                                                                                                                                       GND             GND                                                                                                    GND           GND           GND              GND
                           GND
                         GND   GND
                             GND                                                                                                                                                                                                                        GND
                                                                                                                                                                                                                       GND


3/11/2005 23:31:08 /usr/home/sailer/eagle/DIGTCVR1RX/tcvr1rx.sch (Sheet: 1/3)




                                                                                                                           Thomas Sailer, HB9JNX/AE4WA                                                                                                                                                                                                                       Digitaler Receiver für 3m, 2m, 70cm
                                                                                                                         Motivation
                                                                                                                                                                                                                                                                      Highlights
                                                                                                                      Der Receiver
                                                                                                                                                                                                                                                                      Schaltbild
                                                                                                                      Der Digitalteil
                                                                                                                                                                                                                                                                      AD9874
                                                                                                               Resultate & Ausblick




                                                                                                                                    VCC33
                                                                                                                             2.2u



                                                                                                                                              2.2u



                                                                                                                                                              2.2u



                                                                                                                                                                            2.2u



                                                                                                                                                                                            L504 2.2u



                                                                                                                                                                                                             2.2u



                                                                                                                                                                                                                           2.2u



                                                                                                                                                                                                                                          2.2u



                                                                                                                                                                                                                                                          L508 2.2u
                                                                                                                             L500



                                                                                                                                              L501



                                                                                                                                                              L502



                                                                                                                                                                            L503




                                                                                                                                                                                                             L505



                                                                                                                                                                                                                           L506



                                                                                                                                                                                                                                          L507
                                                                                                                                                                                                                                                                                                        6.8u        L531
                                                                                                                                                                                                                                                                                           R530
                                                                                                                                                                                                                                                                                                                                                                                   GND
                                   48




                                                        14




                                                                             40




                                                                                                                                                                                   C504




                                                                                                                                                                                                                                                 C508
                                                               17

                                                                      39



                                                                                    26

                                                                                           27




                                                                                                                      C500



                                                                                                                                    C501



                                                                                                                                                     C502



                                                                                                                                                                     C503




                                                                                                                                                                                                    C505



                                                                                                                                                                                                                    C506



                                                                                                                                                                                                                                  C507




                                                                                                                                                                                                                                                                                                                              C532
                                                                                                                             100n



                                                                                                                                              100n



                                                                                                                                                              100n



                                                                                                                                                                            100n



                                                                                                                                                                                            100n



                                                                                                                                                                                                             100n



                                                                                                                                                                                                                           100n



                                                                                                                                                                                                                                          100n



                                                                                                                                                                                                                                                          100n




                                                                                                                                                                                                                                                                                                                                        120p
                                          6

                                                 9




           C510
                                                                                                                                                                                                                                                                                           51
                                                                                                                                                                                                                                                                                                        6.8u      L530




                                                                                                                                                                                                                                                                                                                                                                  C531

                                                                                                                                                                                                                                                                                                                                                                            100p
           100p                                                              VDDL
                                                                      VDDP
                                                 VDDA
                                   VDDI




                                                                                    VDDD

                                                                                           VDDH
                                                        VDDQ

                                                               VDDC
                                          VDDF




                                                                                                            C513         GND            GND             GND             GND           GND                GND           GND           GND            GND
             C512




                                                                                                                                                                                                                                                                                                                                                                                   C533

                                                                                                                                                                                                                                                                                                                                                                                               2.2n
                           11                                                                          41
                    10n




                                                                                                                                                                                                                                                                                                                                                     C530
                                VREFP                                                        CXVM




                                                                                                                                                                                                                                                                                                                                                                   100p
           C511                             IC500P                                                             C514
                           12               AD9874                                                     44 1n
                                VREFN                                                        CXVL
                    R510                                                                                    C515
           100p                                                                                                100n




                                                                                                                                                                                                                                                                                                                                                                     4




                                                                                                                                                                                                                                                                                                                                                                                                8
                                                                                                                                                                                                                                                                                                                                1

                                                                                                                                                                                                                                                                                                                                            2



                                                                                                                                                                                                                                                                                                                                                            5




                                                                                                                                                                                                                                                                                                                                                                                        7
                           13                                                                          46
                                RREF                                                            CXIF
                                                 GNDA




                                                                      GNDP

                                                                             GNDL




                    100k 21                                                                            34 100n
                                                        GNDQ

                                                               GNDC




                                                                                    GNDD

                                                                                           GNDH
                                          GNDF
                                   GNDI




                                                                                                                                                                                                                                                                                                                                                             IF2P
                                                                                                                                                                                                                                                                                                                                     MXOP

                                                                                                                                                                                                                                                                                                                                            MXON




                                                                                                                                                                                                                                                                                                                                                                         IF2N



                                                                                                                                                                                                                                                                                                                                                                                          GCP

                                                                                                                                                                                                                                                                                                                                                                                                 GCN
                                GNDS1                                                      GNDS2

                                                                                                                                                                                                                                                                                                                                                                                                      DOUTA
                                                                                                                                                                                                                                                                                                                                                                                                                                 29           DOUTA
     GND                                                                                                              GND
                                                                                                                                                                                                                                                                                       IFFILTERED 47                                                                                                                             30
                                          3
                                   45




                                                               18
                                                 10

                                                        16



                                                                      37

                                                                             36

                                                                                    22

                                                                                           32




                                                                                                                                                                                                                                                                                                                     IFIN                                                                             DOUTB
                                                                                                                                                                                                                                                                                                                                       IC500A
                                     GND
                                   GND   GND
                                       GND GND
                                             GND
                                               GND
                                                 GND
                                                   GND                                                                                                                                                                                                                                                                                 AD9874                                                                  FS
                                                                                                                                                                                                                                                                                                                                                                                                                                 31           FS
                                                                                                                                                                                                                                                                                R520          C520
                                                                                                                                                                                                                                                         REFCLOCK                                            35
                                                                                                                                                                                                                                                                                                                     FREF                                                                        CLKOUT
                                                                                                                                                                                                                                                                                                                                                                                                                                 28           CLKOUT
                                                                                                                                                                                                                                                                                1k            10n
                                                                                                                                                                                                                                                                                                                                                                                                      SYNCB
                                                                                                                                                                                                                                                                                                                                                                                                                                 33           SYNCB




                                                                                                                                                                                                                                                                                                                      IOUTL




                                                                                                                                                                                                                                                                                                                                                          IOUTC

                                                                                                                                                                                                                                                                                                                                                                   CLKP

                                                                                                                                                                                                                                                                                                                                                                            CLKN
                                                                                                                                                                                                                                                                                                                               LOP

                                                                                                                                                                                                                                                                                                                                        LON




                                                                                                                                                                                                                                                                                                                                                                                                               PE
                                                                                                                                                                                                                                                                                                                                                                                               PC

                                                                                                                                                                                                                                                                                                                                                                                                      PD
                                                                                                                                                                                                                                                                                                                                                                                                                                             R502
                                                                                                                                                                                                                                                                                                                                                                                                                                                                     PE
                                                                                                                                                                                                                                                                                                                                                                                                                                                    R501




                                                                                                                                                                                                                                                                                                                              43

                                                                                                                                                                                                                                                                                                                                      42




                                                                                                                                                                                                                                                                                                                                                                                                      24
                                                                                                                                                                                                                                                                                                                     38




                                                                                                                                                                                                                                                                                                                                                     15

                                                                                                                                                                                                                                                                                                                                                                  19

                                                                                                                                                                                                                                                                                                                                                                          20



                                                                                                                                                                                                                                                                                                                                                                                           23



                                                                                                                                                                                                                                                                                                                                                                                                           25
                                                                                                                                                                                                                                                                                                                                                                                                                                             100
                                                                                                                                                                                                                                                                                                                                                                                                                                                                     PD




                                                                                                                                                                                                                                                                                                                                C550
                                                                                                                                                                                                                                                                                                                                                                                                                                             R500
                                                                                                                                                                                                                                                                                                                                                                                                                                                    100




                                                                                                                                                                                                                                                                                                                                            1n
                                                                                                                                                                                                                                                                                                                                                                                                                                                                     PC




                                                                                                                                                                                                                                                                      VCC33
                                                                                                                                                                                                                                                                                                                                                                                                                                             100
                                                                                                                                                                                                                                                         R567                    R550                                                                                                                                                                                      C545   R545
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         REFCLOCK




                                                                                                                                                                                                                                                                                                                        C551
                                                                                                                                                                                                                                                         22                      22                                                                                                                                                                                        10n    1k
                                                                                                                                                                                                                                                                                                                                                                                                                                      *1.2u        L540             R540




                                                                                                                                                                                                                                                                                                                                     1n
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    2.2k




                                                                                                                                                                                                                                                                                                                                                                     C544




                                                                                                                                                                                                                                                                                                                                                                                                        C542



                                                                                                                                                                                                                                                                                                                                                                                                                              C541




                                                                                                                                                                                                                                                                                                                                                                                                                                                     C540
                                                                                                                                                                                                                                                                                                                                                                                *100n




                                                                                                                                                                                                                                                                                                                                                                                                                                                            *100n
                                                                                                                                                                                                                                         C567




                                                                                                                                                                                                                                                                                       C552




                                                                                                                                                                                                                                                                                                             100n


                                                                                                                                                                                                                                                                                                                      100n
                                                                                                                                                                                                                                                  100n




                                                                                                                                                                                                                                                                                                100n




                                                                                                                                                                                                                                                                                                                                                                                                                                      *18p
                                                                                                                                                                                                                                                                                                                                                   R542




                                                                                                                                                                                                                                                                                                                                                                                        R541




                                                                                                                                                                                                                                                                                                                                                                                                                *BBY31 *10n
                                                                                                                                                                                                                                                                                                                                                                                                 *10k
                                                                                                                                                                                                                                                                                                                                                              *390
                                                                                                                                                                                                                                                                                                             L551


                                                                                                                                                                                                                                                                                                                      L550
                                                                                                                                                                                   GND                                                      GND                                            GND                                                                                                                                   GND                      GND




                                                                                                                                                                                                                                                                                                                                                                                                       D540
                                                                                                                                                                                                                                           1                              IC550                  8




                                                                                                                                                                                                                                                                                                                                                                                *680n
                                                                                                                                                                                                                                                                                                                                                                     C543
                                                                                                                                                                                   C563




                                                                                                                                                                                                                                                    VCC1                          OUTP
                                                                                                                                                                                                                                                                          MAX2620
                                                                                                                                                                                            10p




                                                                                                                                                                                                             22p
                                                                                                                                                                            1.2n
                                                                                                                                                                  C564




                                                                                                                                                                                                                                           2
                                                                                                                                                                                                                                                    TANK                         VCC2
                                                                                                                                                                                                                                                                                                 7                                                                                                         GND
                                                                                                                                                                                                                                                                                                                                                                           GND
                                                                                                                                                                25k




                                                                                                                                                                     GND                                     C562
                                                                                                                                                       R565




                                                                                                                                                                                                           330n




                                                                                                                                                                                                                                                                                                       GND
                                                                                                                                                                                    BBY40




                                                                                                                                                                      22k                                                                  3                                                     6
                                                                                                                                                                                                                           56p
                                                                                                                                                12k




                                                                                                                                                                                              D560D561




                                                                                                                                                                                                                                                    FDBK                             GND
                                                                                                                                                                                   BBY40




                                                                                                                                                                                                                    C561
                                                                                                                                       R566




                                                                                                                                                                                                           L560




                                                                                                                                                                        R560                                                               4                                                     5
                                                                                                                                                                                                                                                    SHDN BIAS                    OUTN
                                                                                                                                                15n




                                                                                                                                                                                                                    C560
                                                                                                                                                                560p
                                                                                                                                       C566



                                                                                                                                                       C565




                                                                                                                                                                                                                           56p




                                                                                                                                                                                        GND
                                                                                                                                                                                      GND                                                 C569
                                                                                                                                                                                                                                                         GND


                                                                                                                                       GND              GND
                                                                                                                                                                                   Kvco=1.74MHz/V                      GND
                                                                                                                                                                                                                                          100n
                                                                                                                                                                                   RFopt=42MHz
                                                                                                                                                                                   Fref=25kHz                                               R569 VCC33

                                                                                                                                                                                                                                            10k




3/11/2005 23:31:36 /usr/home/sailer/eagle/DIGTCVR1RX/tcvr1rx.sch (Sheet: 2/3)




                                                               Thomas Sailer, HB9JNX/AE4WA                                                                                                                                                                            Digitaler Receiver für 3m, 2m, 70cm
                                                                                  Motivation
                                                                                                                                                                                                          Highlights
                                                                               Der Receiver
                                                                                                                                                                                                          Schaltbild
                                                                               Der Digitalteil
                                                                                                                                                                                                          AD9874
                                                                        Resultate & Ausblick




                                                                                                                                                                                               VCC33




                                                                                                                                                                                                                                                                                                             VCC
                                                                                                                                                                                            R740



                                                                                                                                                                                                          R741



                                                                                                                                                                                                                        R742
                                                                                                                                                                                     10



                                                                                                                                                                                                   10



                                                                                                                                                                                                                 10
                                                                                                                                                                                                                                                                                                                                                                            IC900C




                                                                                                                                                                                                                                                                                       2.2k



                                                                                                                                                                                                                                                                                                     2.2k
                                                                                                                                                                                                                                                                              R930



                                                                                                                                                                                                                                                                                              R931
                                                                                                                                                                                                                                                                                                              1               2                                5               6     SYNCB
                                                                                                                                                                                                                                                                R920                                         3                4           R913
                                                                           R710                                                                                                                                                             PLLCLOCK                                                 SDA     5                6                                             74VHC04D
                                                                                                                                                                                                                                                       R922                                          SCL     7                8




                                                                                                                                                      100n




                                                                                                                                                                                     100n



                                                                                                                                                                                                   100n



                                                                                                                                                                                                                 100n
                                                                                                                                                                C731



                                                                                                                                                                              C732



                                                                                                                                                                                            C740



                                                                                                                                                                                                          C741



                                                                                                                                                                                                                        C742
                                                                                                                                                                                                                                                                100                                                                       100




                                                                                                                                                                          +
                                                                 GND
                                                                                                                                                                                                                                            PLLLEVHF                                                         9                10                                    R921




                                                                                                                                                                       10u
                                                                           12k
                                                                                                                                                                                                                                                                R924                                        11                12                                                      PLLDATA
                                                                                                                                                                                                                                                       100




                                                                                         33n
                                                                                                                                                                                                                                            PLLLEUHF                                                        13                14                                             R923
                                                                                                                                                                                                                                                                                                                                                                    100




                                                                                 C710
                                                                               C711                                                                                                  GND       GND           GND                                                                                            15                16                                                      PLLMUXVHF
                                                                                                                                                                                                                                                                100
                                                                                                                                                                                                                                                                                      PD                    17                18                PC                  R925




                                                                                                                               21




                                                                                                                                                          14
                                                                                                                                                                                                                                                                                                                                                                             100




                                                                                                                                          2

                                                                                                                                                 6
                                                                   GND
                                                                                                                                                                                                                                                                                                            19                20                PE                                    PLLMUXUHF
                                                                               1.5n
                          R750 VCC33                                                                                                                                                                                                                                                                        21                22
                                                                                                                                                                                                                                                                                                                                                                    100




                                                                                 R712
                                                                                                                                                                                                                                                                                                            23                24




                                                                                                                                                          CN
                                                                                         22k




                                                                                                                                          AVDD

                                                                                                                                                   VVCO
                                                                                                                                   DVDD
                                                                                                    24
                                                                                                          CP                                                                                                C733                                                                                            25                26
                          8.2                                                                                                                                                                                                                                IC900D
                                                                         C712                                                                                                  REFIN
                                                                                                                                                                                               16                                                                      R912                                 27                28
                          C750                                                                        7
                                                                                                          VTUNE                                                                                                                            CLKOUT 9             8                                           29                30
                                                                                                                                                                                                            1n
                                  GND




                                                                   GND
                                                                                                                                                                                                                                                                                              CLK27         31                32
                                                                                1n                                                                                                                                                                                   100
                                                                                 R720                                                                                                                                                                        74VHC04D                                       33                34
                          100n                                                                                                                                                                                                                                                                                                                                     IC900E
                                                                                                                                                                IC700                CLK
                                                                                                                                                                                               17                              PLLCLOCK                                                                                                             R910
            L750   330n                                                                               4                                                       ADF4360                                                                                        IC900F    R911                                 SV900                                                     10              11DOUTA
                                                                                        50                RFOUTA
                          6
                                                                                                                                                                                   DATA
                                                                                                                                                                                               18                              PLLDATA     FS    13             12
                                                                                                                                                                                                                                                                                                                                                        100
                                                                                 R721                 5
                                                                                                          RFOUTB                                                                                                                                                                                      GND                          GND                 74VHC04D
                                                                                                                                                                                                                                                                     100




                                                                                                                                                                                                                                                                                                                                                    CLK27
                                                                                                                                                                                       LE
                                                                                                                                                                                               19                              PLLLEVHF                      74VHC04D
                                                          C751
                                                                                        50
             LOOUT        7               IC750       3
                                                                                                                                                                                      CE
                                                                                                                                                                                               23
                                        AD8354                                                        9
                                                                                                          L1
                                                          1n
                                                                                                                                                                        MUXOUT
                                                                                                                                                                                               20                              PLLMUXVHF




                                                                                                                                      AGND4

                                                                                                                                              AGND3

                                                                                                                                                      AGND2

                                                                                                                                                               AGND1




                                                                                                                                                                                                                                                                                                                                                R902
                                                                                                    10




                                                                                                                      CPGND
                                                                                                          L2
                                                                 27n




                                                                                                                              DGND




                                                                                                                                                                              RSET
                                                                                                                PAD
                                                                                                                                                                                                                                                                                                              IC900A




                                                                                                                                                                                                                                                                                                                                                            *
                                                                                 R700




                                                                                                                                                                       CC
                                                                                27n
                                                                         470
                                  4




                                                                                                                                                                                                                                                                                                                         2                      1
                              5




                                              8




                                                                                                                                                                                                                                                                              VCC33
                                                  1
                                        PAD




                                                                 L700




                                                                                                   R701
                                                                                             470




                                                                                                                      1
                                GND
                              GND   GND
                                  GND GND                                                                                                                                          R730                                                                                C903                            74VHC04D




                                                                                                                                                              3
                                                                                                                                                      8
                                                                                                                                              11
                                                                                                                              15

                                                                                                                                     22




                                                                                                                                                                       12

                                                                                                                                                                            13
                                                                                                               PAD
                                                                                      L701

                                                                                                                                                                                                                                                                                                                         1M




                                                                                                                                                                                                                                                               GND
                                                                                                             GND
                                                                                                           GND   GND
                                                                                                               GND   GND
                                                                                                                   GND GND
                                                                                                                                                                                     4.7k                                                                        100n




                                                                                                                                                                                                                                                                                 14
                                                                                                                                                                            C730
                                                                                                                                                                                                                                                                                                                         R900 Q900




                                                                                                                                                                                                                                                                                      VCC
                                                                 GND                                                                                                                         GND                                                R903          IC900B




                                                                                                                                                                 1n
                                                                                                                                                                                                                                                                                                            100               24MHz
                                                                                                                                                                                                                                                       REFCLOCK    4                  IC900P3
                                                                                      GND
                                                                                                                                                                                                                                                1k                                                          R901




                                                                                                                                                                                                                                                                                      GND
                                                                                                                                                                 GND                                                                                          74VHC04D




                                                                                                                                                                                                                                                                                                                  C901



                                                                                                                                                                                                                                                                                                                                   C902




                                                                                                                                                                                                                                                                                                                                                            C900
                                                                                                                                                                                                                                                                                                                             47p




                                                                                                                                                                                                                                                                                                                                                47p
                                                                                                                                                                                                                                                                                                                                          *1p
                                                                                                                                                                                                                                                                                 7
                                                                                                                                                                                               VCC33
                                                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                                                  GND                 GND GND




                                                                                                                                                                                            R840



                                                                                                                                                                                                          R841



                                                                                                                                                                                                                        R842
                                                                                                                                                                                     10



                                                                                                                                                                                                   10



                                                                                                                                                                                                                 10
                                                                           R810
                                                                                                                                                      100n




                                                                                                                                                                                     100n



                                                                                                                                                                                                   100n



                                                                                                                                                                                                                 100n
                                                                                                                                                                C831



                                                                                                                                                                              C832



                                                                                                                                                                                            C840



                                                                                                                                                                                                          C841



                                                                                                                                                                                                                        C842
                                                                                                                                                                          +
                                                                 GND




                                                                                                                                                                       10u
                                                                           12k
                                                                                         33n
                                                                                 C810




                                                                               C811                                                                                                  GND       GND           GND
                                                                                                                               21




                                                                                                                                                          14
                                                                                                                                          2

                                                                                                                                                 6
                                                                   GND




                                                                               1.5n
                                                                                 R812




                                                                                                                                                          CN
                                                                                         22k




                                                                                                                                          AVDD

                                                                                                                                                   VVCO
                                                                                                                                   DVDD




                                                                                                    24
                                                                                                          CP                                                                                                C833
                                                                         C812                                                                                                  REFIN
                                                                                                                                                                                               16
                                                                                                      7
                                                                                                          VTUNE                                                                                             1n
                                                                   GND




                                                                                1n
                                                                                 R820
                                                                                                                                                                IC800                CLK
                                                                                                                                                                                               17                              PLLCLOCK
                                                                                                      4                                                       ADF4360
                                                                                        50                RFOUTA
                                                                                                                                                                                   DATA
                                                                                                                                                                                               18                              PLLDATA
                                                                                 R821                 5
                                                                                                          RFOUTB
                                                                                                                                                                                       LE
                                                                                                                                                                                               19                              PLLLEUHF
                                                                                        50                                                                                                     23
                                                                                                                                                                                      CE
                                                                                                      9
                                                                                                          L1
                                                                                                                                                                        MUXOUT
                                                                                                                                                                                               20                              PLLMUXUHF
                                                                                                                                      AGND4

                                                                                                                                              AGND3

                                                                                                                                                      AGND2

                                                                                                                                                               AGND1




                                                                                                    10
                                                                                                                      CPGND




                                                                                                          L2
                                                                 39n




                                                                                                                              DGND




                                                                                                                                                                              RSET
                                                                                                                PAD
                                                                                 R800




                                                                                                                                                                       CC
                                                                                39n
                                                                         470
                                                                 L800




                                                                                                   R801
                                                                                             470




                                                                                                                      1




                                                                                                                                                                                   R830
                                                                                                                                                              3
                                                                                                                                                      8
                                                                                                                                              11
                                                                                                                              15

                                                                                                                                     22




                                                                                                                                                                       12

                                                                                                                                                                            13
                                                                                                               PAD
                                                                                      L801




                                                                                                             GND
                                                                                                           GND   GND
                                                                                                               GND   GND
                                                                                                                   GND GND
                                                                                                                                                                                     4.7k
                                                                                                                                                                            C830




                                                                 GND                                                                                                                         GND
                                                                                                                                                                 1n




                                                                                      GND
                                                                                                                                                                 GND


3/11/2005 23:31:47 /usr/home/sailer/eagle/DIGTCVR1RX/tcvr1rx.sch (Sheet: 3/3)




                                                  Thomas Sailer, HB9JNX/AE4WA                                                                                                                             Digitaler Receiver für 3m, 2m, 70cm
                                                       Motivation
                                                                                         Highlights
                                                    Der Receiver
                                                                                         Schaltbild
                                                    Der Digitalteil
                                                                                         AD9874
                                             Resultate & Ausblick




                                                            FUNCTIONAL BLOCK DIAGRAM

                     MXOP     MXON   IF2P IF2N        GCP    GCN



                                                                    DAC      AGC                          AD9874
            −16dB



            LNA                                          Σ−∆ADC             DECIMATION
 IFIN                                                                                               FORMATTING/SSI      DOUTA
                                                                               FILTER
                                                                                                                        DOUTB

                                                                                                                        FS

                                                                                                                        CLKOUT
FREF
                                                                                              CONTROL LOGIC


             LO                                                             VOLTAGE
                                               CLK SYN
            SYN                                                           REFERENCE
                                                                                                    SPI




        IOUTL       LOP     LON      IOUTC     CLKP          CLKN   VREFP    VCM      VREFN    PC    PD    PE   SYNCB

                LO VCO AND
                                             LOOP FILTER
                LOOP FILTER




                          Thomas Sailer, HB9JNX/AE4WA                                    Digitaler Receiver für 3m, 2m, 70cm
  –7                                                                                                     CONTROL
                                                              Motivation
    –8
                                                                                  Highlights
                                                                                 Figure 12. Equivalent Circuit of Sixth Order
 ias 0      BAND-PASS SIGMA-DELTA ( -400 ADC 500 Receiver
              100         200        300
                                                   )          Der
will        The ADC of the AD9874 is shown in Figure 12. TheDigitalteil          Schaltbild
                                                                                 Band-Pass - Modulator
                         FREQUENCY – MHz                      Der ADC
 ultiple    contains a sixth order multibit band-pass - modulator that           AD9874
                                                     Resultate & AusblickFigure 13a shows the measured power spectral density measured
 ions LNA/Mixer very high instantaneous dynamic Bias Setting
   11c.     achieves Frequency Response vs. range over a narrow
nging       frequency band. The loop filter of the band-pass - modulator  at the output of the undecimated band-pass - modulator.
  B    AD9874 Σ∆ Wandler (Datenblatt)
 nalstep attenuator is also included within the LNA/ a discrete- Note that the wide dynamic range achieved at the center fre-
  data.
            consists of two continuous-time resonators followed by
            time resonator, with each resonator stage contributing
 circuitry to prevent large signals (i.e., > –18 dBm) a pair of quency, fCLK/8, is achieved once the LC and RC resonators of
 _2 for
             the - modulator. In such an external LC tank, while
 verdrivingcomplex poles. The first resonator is instances, the the LCthe - modulator have been successfully tuned. The out-of-
 uld        the second is an on-chip active RC filter. The output of
 odulator will become unstable, thus severely desensitizing pF band noise is removed by the decimation filters following
  the       resonator is ac-coupled to the second resonator input via 100
             16 dB step attenuator can be these two continuous-time
 eiver. The capacitors. The center frequencies ofinvoked by set-
  e                                                                       quadrature demodulation.
 tics for    bit (Register be tuned to fCLK/8 for the ADC to function
e ATTEN resonators must 0x03, Bit 7), causing the mixer
mixer’s                           frequency of attenuator could
            properly. The center 16 dB step the discrete-time resonator
   be reduced by 16 dB. The                                                         0
nce         automatically scales with fCLK, thus no tuning is required.                              –2dBFS OUTPUT   fCLK = 18MHz
d in applications in which a potential target or blocker                                  –10
                                                                                                                                             NBW = 3.3kHz
could exceed the IF input clip point. Although the LNA
                            EXTERNAL
                            LC                                                            –20
 driven into compression, it may still be possible to
                                                                                          –30
                                           to 13 MSPS TO to see
r the desired signal if it is FM. ReferfCLK =TPC 7c 26 MSPS
                         IF2P
                                      the
n compression characteristics of RC LNA and mixer                                         –40




                                                                               dBFS/NBW
                                              SC        NINE-
                                     RESO-   RESO-     LEVEL
 e 16 dB attenuator enabled. NATOR NATOR FLASH
           MXOP
                         IF2N
                                                                                          –50
                          MXON
                                                                                          –60
 ble IX. SPI Registers Associated with LNA/Mixer
                                                                                          –70
                                                        ESL       TO DIGITAL
 ss     Bit                       DAC1     Default                FILTER
                                                                                          –80
        Breakdown            Width         Value        Name
                  MIXER
                 OUTPUT            GAIN                                                   –90
        (7:0)                8   CONTROL   0xFF         STBY
                                                                                          –100
        (7:6)     Figure 12. Equivalent Circuit of Sixth Order
                          2           0                LNAB                                      0   1      2      3       4    5        6     7     8      9
 00
                  Band-Pass - Modulator                                                                                FREQUENCY – MHz

              Figure 13a shows the measured power spectralMIXB measured
          (5:4)              2             0                density
 Setting      at the output of the undecimated band-pass - modulator.           Figure 13a. Measured Undecimated Spectral Out-
NA/                          1
          (7) Note that the wide dynamic0   range achieved ATTEN fre-
                                                           at the center        put of - Modulator ADC with fCLK = 18 MSPS
m)            quency, fCLK/8, is achieved once the LC and RC resonators of      and Noise Bandwidth of 3.3 kHz
s, the        the - modulator have been successfully tuned. The out-of-
nsitizing     band noise is removed by the decimation filters following
by set-       quadrature demodulation.
mixer
 could                  0

cker                                   Thomas Sailer, HB9JNX/AE4WA
                                          –2dBFS OUTPUT   fCLK = 18MHz            Digitaler Receiver für 3m, 2m, 70cm
                      –10
                                       Motivation
                                    Der Receiver
                                    Der Digitalteil
                             Resultate & Ausblick


Der Digitalteil


                                                            FPGA
                 AD9874             CORDIC
   AD9874                                               Σ∆DAC
                 Interface           DSP
                                                                                            Audio
                                                        Σ∆DAC


   PLL, AD9874   uC Inter−         SBSRAM               Video
   Control                                                                 DAC              BW PAL Video
                   face            Interface            CRTC



   Digital Pot
   Control       MB90F853          SBSRAM




                   Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                               Motivation     Die Platinen
                            Der Receiver      Implementierte Betriebsarten
                            Der Digitalteil   Die Spektrumanzeige
                     Resultate & Ausblick     Ausblick


Die Analog-Platine




           Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                               Motivation     Die Platinen
                            Der Receiver      Implementierte Betriebsarten
                            Der Digitalteil   Die Spektrumanzeige
                     Resultate & Ausblick     Ausblick


Die DVB-S/C Platine als Digitalplatine




           Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                               Motivation     Die Platinen
                            Der Receiver      Implementierte Betriebsarten
                            Der Digitalteil   Die Spektrumanzeige
                     Resultate & Ausblick     Ausblick


Implementierte Betriebsarten




     PM
     AM
     SSB
     Spektrumanzeige




           Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                              Motivation     Die Platinen
                           Der Receiver      Implementierte Betriebsarten
                           Der Digitalteil   Die Spektrumanzeige
                    Resultate & Ausblick     Ausblick


Die Spektrumanzeige




          Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                                Motivation     Die Platinen
                             Der Receiver      Implementierte Betriebsarten
                             Der Digitalteil   Die Spektrumanzeige
                      Resultate & Ausblick     Ausblick


Ausblick




     Messungen / Tuning
     Einfacher zu programmierender Digitalteil
     Version mit 315MHz 1. ZF, 300kHz Bandbreite




            Thomas Sailer, HB9JNX/AE4WA        Digitaler Receiver für 3m, 2m, 70cm
                                Anhang    Weiterführende Literatur



Weiterführende Literatur I


     Al Davis.
     Gnu Circuit Analysis Package.
     http://www.gnucap.org/.
     Matt Ettus.
     GnuRadio UniversalSoftwareRadioPeripheral.
     http://comsec.com/wiki?UniversalSoftwareRadioPeripheral.
     Gerald Youngblood, AC5OG.
     A Software Defined Radio for the Masses, Part 1.
     QEX, July/August 2002.
     http://www.flex-radio.com/.


            Thomas Sailer, HB9JNX/AE4WA   Digitaler Receiver für 3m, 2m, 70cm
                                Anhang    Weiterführende Literatur



Weiterführende Literatur II

     Gerald Youngblood, AC5OG.
     A Software Defined Radio for the Masses, Part 2.
     QEX, September/October 2002.
     http://www.flex-radio.com/.
     Gerald Youngblood, AC5OG.
     A Software Defined Radio for the Masses, Part 3.
     QEX, November/December 2002.
     http://www.flex-radio.com/.
     Gerald Youngblood, AC5OG.
     A Software Defined Radio for the Masses, Part 4.
     QEX, March/April 2003.
     http://www.flex-radio.com/.

            Thomas Sailer, HB9JNX/AE4WA   Digitaler Receiver für 3m, 2m, 70cm
                                Anhang    Weiterführende Literatur



Weiterführende Literatur III

     Gerrit Buhe, DL9GFA.
     Quadratursignalverarbeitung und Software-Demodulation
     mit UNI56-DSP-Board.
     In 19. Internationale Packet-Radio-Tagung, Darmstadt,
     2003.
     Earl Jr Swartzlander.
     Computer Arithmetic.
     IEEE Computer Society Press, 1990.
     Thomas Sailer, HB9JNX, und Stefan Reimann, DG8FAC.
     D-ATV: Basisbandprozessor.
     Adacom Magazin, (14):33–45, Juni 2002.


            Thomas Sailer, HB9JNX/AE4WA   Digitaler Receiver für 3m, 2m, 70cm
                                Anhang    Weiterführende Literatur



Weiterführende Literatur IV



     J. E. Volder.
     The CORDIC Trigonometric Computing Technique.
     IRE Transactions on Electronic Computers, EC-8:330–334,
     1959.
     J. S. Walther.
     An Unified Algorithm for Elementary Functions.
     In Proceedings Spring Joint Computer Conference,
     volume 38, page 397. AFIPS press, 1971.




            Thomas Sailer, HB9JNX/AE4WA   Digitaler Receiver für 3m, 2m, 70cm

								
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