CXA1592Q/R
Pin Description
Pin No.
Symbol
Pin voltage
1
R-Y IN
3V
1
Equivalent circuit
Description
1k
140
140
2k
10µA
AVCC
R-Y signal input pin.
Clamped internally through
C cut input.
AGND
2
R-Y CLP
3.4V
2
1k
140
140
2k
10µA
AVCC
AGND
Pin connecting the capacitor
for R-Y modulator clamp.
Setting the capacitance to
too small a value will enlarge
the carrier leak.
0.1µF and above is
recommended.
3
DVCC
5V
DVCC
3
Power supply pin for the 1/4
counter block.
4
4FSCIN
5
LALT
14.32MHz
4
1Vp-p
DC 2.5V
0V
5
DVCC
1k
20k
80µA
80µA
Input pin for the 4FSC used
to make up the Sub Carrier.
Input through C cut.
Set amplitude to over
500mVp-p.
DGND
DVCC
1k
Input pin for Line Alternate
signal during PAL mode.
140
VTH is at 2.5V. Input a pulse
with an amplitude larger than
80µA
DGND
VTH ±0.5V.
Set to GND during NTSC
mode.
–2–