CXA1700AQ/AR
Pin
Symbol
No.
11 VG1
Pin voltage
DC
AC
2.05V
—
Equivalent circuit
Description
150
2.5k
3k
Internal reference voltage
source. (Can not be used as
external bias for Pins other
than 4, 6, and 9.)
11
12 C TRAP 2.05V
Chroma
signal
300mVp-p
output during
playback
0.6mA
270
150
300
Outputs chroma signal that
has passed through PB C
BPF and chroma feedback
comb filter subtracter
after frequency conversion
12
during playback.
13 LIM C
2.4V
—
150
13
Connects decoupling
capacitor for limiter of the
playback Y comb block.
150
14 Y COMB
OUT
1.2V
(sync tip
level)
Y signal
500mVp-p
output
15 COMB ADJ Control
—
range: 1.8V
to Vcc
10k
10k
150
14
1.4mA
150
15
Outputs Y signal processed by
comb filter. During playback,
the signal is output through
the sharpness circuit. If mode
E is set High, the signal is
output without passing
through the f sc Trap; if mode
SHP THRU is set High, the
signal is output without
passing through the sharp
-ness circuit.
VCA gain adjustment in the
comb filter block. (Refer to
Adjustment Procedure.)
—6—