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PDF TDA8222 Data sheet ( Hoja de datos )
| Número de pieza | TDA8222 | |
| Descripción | VIDEO & SOUND IF SYSTEM WITH VIDEO AND SOUND SWITCHES | |
| Fabricantes | ST Microelectronics | |
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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
TUNER AGC OUTPUT
V CC
VIDEO SWITCH VCC
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 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
1/9
1 page  
TDA8222
ELECTRICAL CHARACTERISTICS (continued)
(Tamb = 25oC, VCC = 9V, IF input = 10mVRMS top sync, D = 90%, Video BW = 5MHz,
Sound carrier input : 5.5MHz, 10mVRMS, fm = 1kHz, Audio BW = 20kHz, ∆f = ± 25kHz,
Volume attenuation = 0dB, Rload on Pin 12 = 1kΩ, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ.
AUDIO SWITCH
R17
CRtk
EXTHD
Input Resistance
Crosstalk
THD on External Signal
VIDEO SWITCH
VIN = 2VRMS, Attenuation = 0dB
40 65
70 80
0.05
VDC 13-14
VS 13-14
V12
VS 12
G13-14 . 12
I13-14
VBW
DC Input Level
Top Sync Clamp Level
DC Output Level
Top Sync Clamp Level
Crosstalk
Gain from inputs to output
Output Swing
Input Current
Bandwidth
SWITCHING INPUT
No signal
No signal
VIN = 1VPP
V13-14 = VDC 13-14 + 1.5V
VIN = 1VPP
1.6 1.9
1.8
0.7 1.0
0.85
55
5.5 6
4.5
1
15
V21 ext
V21 int
I21
MUTE
External Input Selection Level
Internal Input Selection Level
Sourced Current
5
0
V15 Threshold Voltage
V15 DC Level when mute disabled
High impedance controling circuit
2.1
2.8
Max.
0.3
2.2
1.3
6.5
5
2.5
10
Unit
kΩ
dB
%
V
V
V
V
dB
dB
V
µA
MHz
V
µA
V
V
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet TDA8222.PDF ] | |
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