TDA4443B TDA4443B 1.F. amplifier, video detector Pin (1) <-_ LF. from SAW filter (2) (3) 0 V ground (4) 2V5, AGC circuit (5)6V5 - _ Tuner AGC (6)2V5 -_ AGC control (7) (8) Vision detector LC circuit (9) Vision detector LC circuit (10) 1V8 (11) ____-_ Video (12) (13) +__ 12. Vsupply (14) +__-_ 12 V supply (15) 0 V ground (16) +_-_ LF. from SAW filter