Bez tytu³u-4 - Serwis Elektroniki

IAplikacje uk³adów scalonych - TEA6840HTEA6840H - schemat blokowyantennaCOILS: L1: P392BE−2104GNLL2: P7PSAE−2119D=SL3: 392BC−1977Z=S(1) 1 to 5pF trimmer without DAA; (2) series NPO.V tune10 kf refPLL2.2 k3.3 nF223.9 nF 1.2 k100 nF22 nF1918 17153.3µH5Vdigital100 nFDGND16 14 13470k20Vt22 k21DACCBB814(1)120 nHAMTUNING SYSTEM10.25 MHzDE1 nF6.8µH8.2 pF470 nH47 pF8.2 pFBA595BA595560 pF3.3µH100 nF221 M1µF4:7222324252627FMAGC×1st FMI/Q MIXERN1÷290˚WXFTEA6840HG5Vanalog220 nH100nF47µFRFGND22 nF2890˚AM−NOISEDETECTORPEAK/AVERAGEH270270BAQ800100 nFWBFLAG293031AMRF AGCN2÷5/10JKLMN220nF1 mH220 µH100pF330 pF100µH680µH1 nF180pF32×1st AMMIXER33 3435 3637 38 39OP1.5 k1.2 M22nF22nF22nF470 pF1 nFBF861C4.7 µF100nFBAV99470k22 nFL1SFE10.7MS347 22221032 SERWIS ELEKTRONIKI 10/2002Aplikacje uk³adów scalonych - TEA6840H4.7 k270 pF (2)AF AFSAMPLE HOLDAMAUDIO/IFRSD/MPXFMMPX5Vanalog8.5 VBB156223.3µH 3.3µH2.7pF1.8pF22 nF47µF10 nF100 nF47µF100 nF12 1110987654321VCOSEQUENTIALCIRCUIT FORRDS UPDATINGAMDETECTORMUTEPOWERSUPPLY2 ms/20 ms39k 39kV DD (I 2 C−bus)I 2 C−busFM IFAM IF2IFCOUNTI 2 C−BUS6463SDASCL62IF2GND61AMIF AGCLEVELDAADEMODULATOR604.7kL359AFCBLANKPULSEAMLEVELS5847µFAM/FMLEVEL×2nd AMMIXERFMLIMITER/LEVELCRYSTALOSCILLATOR5756555420.5MHz120k220nF53L25240 41 42 43 44 45 46 47 48 49 50 5122nF220nFIF1GND100 nF100nF330100nF10µF22 nFSFE10.7MS3SFR450HSFE10.7MS3228.5 VSERWIS ELEKTRONIKI 10/2002 33