Philips TDA8443A - Manual (Page 3)

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 23 19 22 18 17 16 15 14 13 24
B3 B2 B1
MATRIX
RGB/YUV
CLAMP CLAMP CLAMP
CLAMP PULSE
GENERATOR
CLAMP CLAMP CLAMP
2 4 5 6 7 10 11 12 8 9
TDA8443A
3 1
FAST
SWITCHING
SEL fast
switching
SYNC2 B/ (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