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1
TA1287FG (AV BOARD ASSY : IC8905)
• RGB to YUV/IQ High-speed Matrix IC
A
Block Diagram
VIN 1
YIN 2
UIN 3
B
CPIN 4
GND 5
RIN 6
GIN 7
C
BIN
Pin Function
No.
Pin Name
1
VIN
2
YIN
D
3
UIN
4
CPIN
5
GND
6
RIN
7
GIN
8
BIN
9
YS1
10
YS2
11
YS3
12
VCC
E
13
VOUT
14
YOUT
15
UOUT
16
Matrix Control
F
166
1
2
CLAMP
CLAMP
CLAMP
Y/I
RGB
Y
YUV/IQ
U/Q
8
I/O
I
Input R-Y (V) or R signal through a clamping capacitor.
I
Input Y or G signal through a clamping capacitor.
I
Input B-Y (U) or B signal through a clamping capacitor.
I
Input clamping pulse. Threshold: 0.75V
−
Ground
I
Input R or R-Y (V) signal through a clamping capacitor.
I
Input G or Y signal through a clamping capacitor.
I
Input B or B-Y (U) signal through a clamping capacitor.
I
Select to switch mixing ratio. Threshold: 0.75V
I
Select to switch mixing ratio. Threshold: 0.75V
I
Select to switch mixing ratio. Threshold: 0.75V
−
Power supply 9V
O
Output R-Y (V) or R signal.
O
Output Y or G signal.
O
Output B-Y (U) or B signal.
I
This pin's voltage control the matrix coefficient for output signals. Selects the output mode.
2
3
MATRIX SW
B-Y/Q-MIX
Y-MIX
R-Y/I-MIX
TV/Ext.
MIX Ys
CLAMP
CLAMP
CLAMP
Pin Function
PDP-R04U
3
4
16
Matrix Control
15
UOUT
14
YOUT
13
VOUT
12
VCC
11
YS3
10
YS2
9
YS1
4
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