Philips TDA8443A ユーザーズマニュアル
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
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
output
clamp pulse
generator
R/ (R Y)
input
G/Y
input
B/ (B Y)
input
outputs
P