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TDA8222 Datasheet

  • TDA8222

  • VIDEO & SOUND IF SYSTEM WITH VIDEO AND SOUND SWITCHES

  • 9頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA8222
VIDEO & SOUND IF SYSTEM
WITH VIDEO AND SOUND SWITCHES
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3 STAGE IF GAIN CONTROLLED AMPLIFIER
SYNCHRONOUS VIDEO DEMODULATOR
TOP SYNC AGC CIRCUIT
WHITE AND BLACK NOISE INVERTER
TUNER AGC OUTPUT FOR PNP TUNERS
(suitable also for MOSFET tuners)
ANALOG AFC
FM DETECTOR
AUDIO AND VIDEO SWITCHES COMPAT-
IBLE WITH SCART EUROPEAN NORM
DC VOLUME CONTROL
MUTE FUNCTION
SHRINK DIP24
(Plastic Package)
ORDER CODE :
TDA8222
DESCRIPTION
The TDA8222 is a video and sound IF circuit in
Shrink DIP24 package for color and black and white
TV sets. It is intended to operate with a negatively
modulated vision carrier and frequency modulated
sound carrier. It incorporates video and audio
switches compatible with SCART european norm.
PIN CONNECTIONS
TUNER AGC STARTING POINT ADJUSTMENT
TUNER AGC OUTPUT
V
CC
VIDEO SWITCH V
CC
BALANCED IF INPUT
BALANCED IF INPUT
GROUND
AUDIO SWITCH OUTPUT
VOLUME CONTROL
FM REFERENCE TUNED CIRCUIT
DEMODULATED AUDIO OUTPUT
VIDEO SWITCH OUTPUT
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
AGC TIME CONSTANT
IF LC
IF LC
SWITCHING INPUT
AFC LC
AFC OUTPUT
DEMODULATED CVBS OUTPUT
EXTERNAL AUDIO INPUT
2nd IF SOUND INPUT
2nd IF DECOUPLING INPUT + MUTE
INTERNAL VIDEO INPUT
EXTERNAL VIDEO INPUT
8222-01.EPS
October 1993
1/9

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