STV8223B Datasheet, PDF (1/10 Pages) STMicroelectronics – MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES

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
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
SHRINK24
(Plastic Package)
ORDER CODE : STV8223B
PIF PLL FILTER
1
AFC OUTPUT
2
CVBS OUTPUT
3
SWITCHING INPUT (INT/EXT)
4
IF LC
5
IF LC
6
AUDIO HIGH PASS FILTER
7
2nd IF SOUND INPUT
8
AUDIO AND 2nd IF DECOUPLING
9
INTERNAL VIDEO INPUT
10
VIDEO SWITCH OUTPUT
11
EXTERNAL VIDEO INPUT
12
24
TUNER AGC STARTING POINT ADJUSTMENT
23
TUNER AGC OUTPUT
22
AGC CAPACITOR
21
NOT TO BE CONNECTED
20
IF INPUT
19
IF INPUT
18
GROUND
17
V_CC
16
EXTERNAL AUDIO INPUT
15
FM DEMODULATED AUDIO OUTPUT
14
AUDIO SWITCH OUTPUT
13
VOLUME CONTROL + MUTE
January 1997
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