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1995 Mar 07 3
Philips Semiconductors Product specification
I
2
C-bus controlled YUV/RGB switch
TDA8443A
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MLD003
A4 A3 A2 A1
I C-BUS INTERFACE/
DECODER
2
20 21 2319 22181716151413 24
B3 B2 B1
MATRIX
RGB/YUV
CLAMP CLAMP CLAMP
CLAMP PULSE
GENERATOR
CLAMP CLAMP CLAMP
2456710111289
TDA8443A
3 1
FAST
SWITCHING
SELfast
switching
SYNC2B/ (B Y)
input
internal
voltage
R/ (R Y)
input
G/Y
input
B/ (B Y)
input
SYNC1
ON
input
G/Y
input
R/ (R Y)
input
channel 1 channel 2
SDA SCL S0 S1 S2
V
GND
SYNC
output
clamp pulse
generator
R/ (R Y)
input
G/Y
input
B/ (B Y)
input
outputs
P