TDA8222 Datasheet, PDF (1/9 Pages) STMicroelectronics – VIDEO & SOUND IF SYSTEM WITH VIDEO AND SOUND SWITCHES

TDA8222
VIDEO & SOUND IF SYSTEM
WITH VIDEO AND SOUND SWITCHES
. _{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)
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.
ORDER CODE : TDA8222
PIN CONNECTIONS
TUNER AGC STARTING POINT ADJUSTMENT
1
TUNER AGC OUTPUT
2
V _CC
3
VIDEO SWITCH V_CC
4
BALANCED IF INPUT
5
BALANCED IF INPUT
6
GROUND
7
AUDIO SWITCH OUTPUT
8
VOLUME CONTROL
9
FM REFERENCE TUNED CIRCUIT
10
DEMODULATED AUDIO OUTPUT
11
VIDEO SWITCH OUTPUT
12
24
AGC TIME CONSTANT
23
IF LC
22
IF LC
21
SWITCHING INPUT
20
AFC LC
19
AFC OUTPUT
18
DEMODULATED CVBS OUTPUT
17
EXTERNAL AUDIO INPUT
16
2nd IF SOUND INPUT
15
2nd IF DECOUPLING INPUT + MUTE
14
INTERNAL VIDEO INPUT
13
EXTERNAL VIDEO INPUT
October 1993
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