D7678 - Shaoxing

D7678 Video and Sound IF Amplifier

Silicore VIDEO AND SOUND IF AMPLIFIER FOR COLOR AND MONOCHROME TV RECEIVERS CHMC FUNCTION P I F S TA G E z z z z z Three Controlled IF Amplifier stages Vi d e o D e m o d u l a t o r C o n t r o l l e d b y P i c t u r e D7678 Carrier Black Noise and White Noise Inverter Peak AGC DC Amplifier for RF AGC Output S I F S TA G E z z Three Controlled IF Amplif.

Features

t Limiter Characteristics. Excellent AM Rejection. L a rg e U n d i s t o r t e d A u d i o O u t p u t Vo l t a g e w i t h Q u a d r a t u r e D e t e c t o r. SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 1/13 CHMC Silicore PIN CONNECTION D7678 IF IN 1 FIL 2 RFAGC CON 3 RFAGC OUT 4 SIF IN 5 SIF TA 6 OUT AF 7 IF TA 8 9 IF TA 10 SIF TA 11 Vcc 12 VF OUT 13 GND 14 AGC FIL 15 FIL 16 IF IN BLOCK DIAGRAM 11 5 6 BIAS CIRCUIT LIMITER 15 16 1 2 1nd IF 2nd IF 3nd IF LIMITER SOUND DET 7 10 9 VIDEO AMP 8 4 AGC3 AGC2 AGC1 NOISE INVERTER 12 13 3 14 SHAOXING SILICORE TECHNOLO.