Continued from preceding page.
Pin No.
Pin
Voltage (V)
LA9520V
Function
11
MUTE-DET
1.25 Mute detection
VIDEO-MUTE
12
ADJ
1.25 Video muting level adjustment
AUDIO-MUTE
13
ADJ
1.25 Audio muting level adjustment
AUDIO-LOUT
14
ADJ
1.25 Audio left channel output level adjustment
AUDIO-ROUT
15
ADJ
1.25 Audio right channel output level adjustment
16
AUDIO-RIN
2.2 Audio right channel input
AUDIO-R
17
DEEMP-OUT
1.5 Audio right channel deemphasis output
PHASE-SHIFT
18
Rch
3.1 Right channel phase shift
PHASE-SHIFT
19
Lch
Left channel phase shift
3.1
* Pins 18 and 19 are used to connect ceramic
discriminators.
Equivalent circuit
200Ω
REG = 1.25 V
A13098
60kΩ
REG = 1.25 V
A13099
60kΩ
REG = 1.25 V
60kΩ
REG = 1.25 V
60kΩ
1kΩ
A13100
A13101
A13102
2.1V
A13103
7.5kΩ
VCC
A13104
10kΩ
VCC
A13105
10kΩ
A13106
Continued on next page.
No. 6469-8/12