STV8223A Datasheet | STMicroelectronics

.. MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES - . . PRELIMINARY DATA VIDEO PLL DEMODULATION SOUND PLL DEMODULATION NEGATIVE MODULATION AGC FOR BG STANDARDS AUDIO SWITCH DC VOLUME CONTROL VIDEO SWITCH SHRINK24 (Plastic Package) DESCRIPTION The STV8223Ais a picture and sound IF processor for negative modulation application with very few external ponents and adjustments. It provides the audio and video switches for one SCART plug application. PIN CONNECTIONS ORDER CODE : STV8223A PIF PLL FILTER AFC OUTPUT CVBS OUTPUT SWITCHING INPUT (STANDARD + INT/EXT) IF LC IF LC AUDIO HIGH PASS FILTER 2nd IF SOUND INPUT 2nd IF DECOUPLING + MUTE INTERNAL VIDEO INPUT VIDEO SWITCH OUTPUT EXTERNAL VIDEO INPUT 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 TUNER AGC STARTING POINT ADJUSTMENT TUNER AGC OUTPUT AGC CAPACITOR NOT TO BE CONNECTED IF INPUT IF INPUT GROUND V CC EXTERNAL AUDIO INPUT FM DEMODULATED AUDIO OUTPUT AUDIO SWITCH OUTPUT VOLUME CONTROL + MUTE 8223A-01.EPS May 1995 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice. 1/10 BLOCK DIAGRAM EXT CVBS AFC OUTPUT VCC 5 6 1 12 6d B 18 11 10 SWITCHED CVBS PIF PLL & AFC 19 IF INPUT 20 VID AMP WHITE NOISE & SPOT INVERT 3 SFE 5.5 SFE 6.5 CVBS OUT Int/Ext 22 TUNER AGC OUTPUT AGC BG 23 TUNER AGC 24 14 13 16 15 7 DC VOLUME SIF PLL LIMITER & MUTE 8 9 LOGIC INTERFACE 4 EXT AUDIO AUDIO...