LA1781M_09 Datasheet, PDF (8/48 Pages) Sanyo Semicon Device – For Car Radios Single-Chip Tuner IC

Continued from preceding page.
Pin No.
Pin function
15
MPX output (left)
16
MPX output (right)
LA1781M
Pin description
Deemphasis
50μs : 0.015μF
75μs : 0.022μF
Equivalent circuit
VCC
17
Pilot canceller signal output
Adjustment is required since the pilot
signal level varies with the
sample-to-sample variations in the IF
output level and other parameters.
18
Pilot canceller signal output
Pin 18 is the output pin for the pilot
canceller signal.
3.3kΩ
3.3kΩ
15
0.015μF
16
0.015μF
VCC
20kΩ
10kΩ
6.7kΩ
17
18
0.01μF _100kΩ
VCC
1.5kΩ
19
Separation
adjustment pin
Use a trimmer to adjust the
subdecoder input level.
(The output level is not modified in
mono and main modes.)
Composit
signal
17
18
0.01μF _100kΩ
DECODER
5kΩ
19
30kΩ
0.047μF
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