MULTISTANDARD VIDEO AND SOUND IF SYSTEM
STV8223B
MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES
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VIDEO PLL DEMODULATION SO...
Description
STV8223B
MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES
. . . . . . .
VIDEO PLL DEMODULATION SOUND PLL DEMODULATION NEGATIVE MODULATION AGC FOR NEGATIVE MODULATION AUDIO SWITCH DC VOLUME CONTROL VIDEO SWITCH
SHRINK24 (Plastic Package)
DESCRIPTION The STV8223B is a pictureand sound IF processor for multistandard application with very few external components and adjustments. It provides the audio and video switches for one SCART plug application. PIN CONNECTIONS
PIF PLL FILTER AFC OUTPUT CVBS OUTPUT SWITCHING INPUT (INT/EXT) IF LC IF LC AUDIO HIGH PASS FILTER 2nd IF SOUND INPUT AUDIO AND 2nd IF DECOUPLING 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
ORDER CODE : STV8223B
TUNER AGC STARTING POINT ADJUSTMENT TUNER AGC OUTPUT AGC CAPACITOR NOT TO BE CONNECTED IF INPUT IF INPUT GROUND VCC EXTERNAL AUDIO INPUT FM DEMODULATED AUDIO OUTPUT AUDIO SWITCH OUTPUT VOLUME CONTROL + MUTE
8223B-01.EPS
January 1997
1/10
STV8223B
BLOCK DIAGRAM
EXT CVBS AFC OUTPUT
V CC 5 6 1 12
6dB
2
17
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
22 TUNER AGC OUTPUT
AGC
Int/Ext
LOGIC INTERFACE
4
23 TUNER AGC 24 AUDIO Vref MUTE 14 13 16 15 7 9 DC VOLUME SIF PLL LIMITER 8
STV8223B
SWITCHED AUDIO
EXT AUDIO
AUDIO OUT
ABSOLUTE MAXIMUM RATINGS
Symbol VS Vx Tstg Toper Supply Voltage Tuner AGC Voltage Storage Temperatur...
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