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Description of major ICs
ADV7123KST50(IC359):Video DAC
VAA
BLANK
SYNK
DATA
10
R9-R0
REGISTER
DATA
G9-G0
10
REGISTER
DATA
B9-B0
10
REGISTER
POWER-DOWN
PSAVE
MODE
CLOCK
GND
Pin Function (1/2)
Symbol
Pin No.
1~10
G0~G9
11
BLANK
12
SYNC
13
VAA
14~23
B0~B9
24
CLOCK
25,26
GND
27
IOB
28
IOB
29,30
VAA
31
IOG
32
IOG
33
IOR
34
IOR
35
COMP
36
VREF
37
RSET
38
PSAVE
39~48
R0~R9
BLANK AND
SYNK LOGIC
10
DAC
DAC
10
10
DAC
VOLTAGE
REFERENCE
CIRCUIT
RSET COMP
I/O
I
Green pixel data input terminal (TTL compatible)
I
Composite blank control input terminal (TTL compatible)
I
Composite sync control input (TTL compatible)
-
Analog power supply terminal
I
Blue pixel data input terminal (TTL compatible)
I
Clock signal input (TTL compatible)
-
Connect to ground
O
Differential blue current output (high impedance current source)
O
Blue current output
-
Analog power supply terminal
O
Differential green current output (high impedance current source)
O
Green current output
O
Differential red current output (high impedance current source)
O
Red current output
I/O
Compensation pin
-
Voltage reference input for DAC or voltage reference output (1.235V)
I
A resistor connected between this pin and ground
I
Power save control pin
I
Red pixel data input (TTL compatible)
IOR
IOR
IOG
IOG
IOB
IOB
VREF
Function
XV-D9000
1-19
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