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TDA7513 数据表(PDF) 9 Page - STMicroelectronics |
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TDA7513 数据表(HTML) 9 Page - STMicroelectronics |
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9 / 58 page ![]() 9/58 TDA7513 AGC1 (Wide AGC input = AM Mixer1 input; Narrow AGC input = AM Mixer2 input; Ultra Narrow AGC input = AM IF2 Amp input; fWAGCin = 999kHz, fNAGCIN = 10.7MHz, fUNAGCin = 450kHz) Mixer2 (Input at AMMIX2IN, fc = 10.7MHz, no mod) IF2 amplifier (Input at AMIF2AMPIN, fc = 450kHz, no mod) WAGCsp Wide AGC min AMMIX1IN+ @ I(AMAGC1VOUT) = 1 uA 85 dB µV starting point max 104 dB µV NAGCsp NarrowAGC min AMMIX1IN+ @ I(AMAGC1VOUT) = 1 uA 79 dB µV starting point max 97 dB µV UNAGCsp Ultra Narrow AGC min AMMIX1IN+ @ I(AMAGC1VOUT) = 1 uA 50 dB µV starting point max 97 dB µV AGC1R AGC1 filtering resistor AMAGC1TC pin 100 K Ω Iout min AGC OFF 1 µA max AGC ON 0.4 mA Vout min AGC ON 0.5 V max AGC OFF 3.38 V AGC1VRout AMAGC1VOUT output resistance 23 K Ω Gv, max conversion gain, no AGC from AMMIX2IN to IFT2 secondary loaded with 2k Ω 15 dB Gv, min conversion gain, full AGC from AMMIX2IN to IFT2 secondary loaded with 2k Ω -7 dB IIP3 Input 3rd order intercept point referred to AMMIX2IN, no AGC 120 dB µV Rin input resistance AMMIX2IN w.r.t. ground 330 Ω CIFT2 IFT2 min Between AMMIX2OUT and gnd 0 pF adjustment max 24 pF capacitor step 1.6 pF Gv, max gain, no AGC max prog 64.8 dB 62.8 61.7 60.2 58.3 55.8 min prog 53.2 ∆Gv gain decrease in full AGC w.r.t. Gv, max -40 dB Rin input resistance AMMIX2IN w.r.t. ground 2 k Ω |
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