Pin
No.
Symbol Pin voltage
48
SIG.
CENTER
6.0V
Equivalent circuit
VCC2
48
GND2
150k
300
150k
50 B-Y IN
—
51 R-Y IN
VCC1
50
51
GND1
500
30µA
500
10k
50µA
VCC1
52 C OUT
1.3V
52
GND1
350µA
CXA2503AR
Description
RGB output DC voltage
control.
When used with a VCC2 of
12V or more, apply 6V from
an external source.
Color difference demodulation
circuit inputs.
Color difference signal is input
when using Y/color difference
input. At this time, the clamp
level is approximately 2.8V.
Pin 52 signal is input in other
modes. (except D-PAL∗1) At
this time, the DC level is
approximately 2.0V.
Color adjusted chroma signal
output. The burst level is
approximately 140mVp-p (typ.).
(420mVp-p during D-PAL.)
53 BLK LIM
—
VCC1
50k
53
GND1
Sets the RGB output
amplitude (black-black) clip
level.
VCC1
54 APC
2.7V
54
1k
APC detective filter
connection.
GND1
∗1 D-PAL is a demodulation method that uses an external delay line during demodulation; S-PAL is a demodulation
method that internally processes chroma demodulation.
–7–