LA1781M Datasheet, PDF (9/50 Pages) Sanyo Semicon Device – Single-Chip Tuner IC for Car Radios

Continued from preceding page.
Pin No.
Function
Separation
19
adjustment pin
20
VCO
LA1781M
Description
Equivalent circuit
Composite
signal
5 kΩ
DECODER
Use a trimmer to adjust the
subdecoder input level.
(The output level is not modified in
mono and main modes.)
19
30 kΩ
0.047 µF
CSB
912
JF108
20
VREF
A11721
The oscillator frequency is 912 Hz.
KBR-912F108
(Kyocera Corporation)
CSB-912JF108
(Murata Mfg. Co., Ltd.)
10 pF
A11722
VREF
21
PHASE COMP.
22
PHASE COMP.
15 kΩ
+
15 kΩ
19 kΩ
21
22
A11723
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No. 6038-9/50