TEA5114 데이터 시트보기 (PDF) - STMicroelectronics
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TEA5114 Datasheet PDF : 4 Pages
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. 25MHz BANDWIDTH
. CROSSTALK : 55dB
. SHORT CIRCUIT TO GROUND OR VCC PRO-
TECTED
. ANTI SATURATION GAIN CHANGING
. VIDEO SWITCHING
TEA5114A
RGB SWITCHING CIRCUIT
DIP16
(Plastic Package)
ORDER CODE : TEA5114A
PIN CONNECTIONS
DE S CRI P T IO N
This integrated circuit provides RGB switching al-
lowing connections between peri TV plug, internal
RGB generator and video processor in a TV set.
The input signal black level is tied to the same ref-
erence voltage on each input in order to have no dif-
ferential voltage when switching two RGB genera-
tors.
An AC output signal higher than 2 Vpp makes gain
going slowly down to 0dB to protect the TV set video
amplifier from saturation.
Fast blanking output is a logicial OR between FB1
(Pin 8) and FB2 (Pin 10).
R1 INPUT
1
GND
2
R2 INPUT
3
G1 INPUT
4
G2 INPUT
5
B1 INPUT
6
B2 INPUT
7
FB 1 INPUT
8
16
R OUTPUT
15
FB R INPUT
14
VCC
13
G OUTPUT
12
FB G INPUT
11
B OUTPUT
10
FB 2 + FB B INPUT
9
FB OUTPUT
BLOCK DIAGRAM
16
15
14
13
12
11
10
9
G=2
G=2
G=2
OR
VREF
TEA5114A
1
2
3
4
5
6
7
8
May 1996
1/4
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