KA2161
PAL/NTSC 1 CHIP FOR C/TV
PIN DESCRIPTION
PIN FUNCTION
No.
DESCRIPTION
11 APC. filter The APC filter terminal is
connected external R,C
The APC functions filtering
AC signals and provide error
voltage to fsc VCO block.
EQUIVALENT CIRCUIT
11
12 fsc VCO
14 fsc VCO
The fsc VCO is connected
X-tal.
14
12
13 V/C/D GND Video/Chroma/Deflection
GROUND
15 CLAMP The clamp filter terminal is
filter
connected capacitor.
Using clamp circuit, pedestal
level of video signal is
15
clamped.