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TDA1220B Datasheet(PDF) 16 Page - STMicroelectronics |
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TDA1220B Datasheet(HTML) 16 Page - STMicroelectronics |
16 / 18 page 16/18 ELECTRICAL CHARACTERISTICS (Vs = 12V) AM Section (fo = 39MHz; fm = 15KHz) Parameter Typ Unit Audio out (m = 0.3) 60 mV S/N (Vi = 100 mV; m = 0.3) 37 dB S/N (Vi = 1mV; m = 0.3) 55 dB S/N (Vi = 10mV; m = 0.3) 56 dB AGC range (m = 0.8, ∆Vout = 3dB) 65 dB Max input signal handling (m = 0.8; d = 5%) 150 mV – 3dB bandwidth 600 KHz Distortion (Vi = 100 µV; m = 0.3) 2% (Vi = 1mV; m = 0.3) 1 % (Vi = 10mV; m = 0.3) 0.8 % (Vi = 100 µV; m = 0.8) 7% (Vi = 1mV; m = 0.8) 5 % (Vi = 10mV; m = 0.8) 3 % FM Section (fo = 5.5MHz; fm = 1KHz) Parameter Typ Unit –3dB input limiting voltage ( ∆f = 25KHz) 3 µV AMR ( ∆f = +25KHz; m = 0.3; Vi = 100 µV) 40 dB ( ∆f = +25KHz; m = 0.3; Vi = 1mV) 58 dB ( ∆f = +25KHz; m = 0.3; Vi = 10mV) 54 dB S/N ( ∆f = ±25KHz; Vi = 100 µV) 51 dB S/N ( ∆f = ±25KHz; Vi = 1 mV) 70 dB S/N ( ∆f = ±25KHz; Vi = 10mV) 70 dB Distortion ( ∆f = ±25KHz; Vi = 100 µV) 0.5 % ( ∆f = ±25KHz; Vi = 1 mV) 0.6 % ( ∆f = ±25KHz; Vi = 10 mV) 0.6 % ( ∆f = ±50KHz; Vi = 100 µV) 1% ( ∆f = ±50KHz Vi = 1mV) 1% ( ∆f = ±50KHz; Vi = 10mV) 1% Recovered audio ( ∆f = ±15KHz; Vi = 1 mV) Recovered audio can be varied by variation of 3.3K ohm resistor in parallel with the discriminator coil) 70 mV Max input signal handling 1 V Note: AM performance at 39MHz can be improved by mean of a selective preamplifier stage. TDA1220B |
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