Continued from preceding page.
Pin No.
Pin
Voltage (V)
LA9520V
Function
20 AUDIO-LOUT
2.1 Audio left channel output
21 AUDIO-ROUT
2.1 Audio right channel output
AUDIO-L
22
DEEMP-OUT
1.5 Audio left channel deemphasis output
23
AUDIO-LIN
2.2 Audio left channel input
24
AUDIO-GND
25
AUDIO-VCC
0
Audio ground
VCC Audio power supply
26
FM-RIN
FM right channel demodulator input
2.1
* Ceramic bandpass filter: 4.8 MHz
27 VEDEO-GND
0
Video ground
28
FM-LIN
FM left channel demodulator input
2.1
* Ceramic bandpass filter: 4.3 MHz
29
MUTEOUT
Muting output
0.03 Outputs a low level when a carrier is present and a high
level when there is no carrier present.
Equivalent circuit
20kΩ
A13107
20kΩ
7.5kΩ
1kΩ
2.1V
A13108
A13109
A13110
200Ω
1kΩ
A13111
200Ω
1kΩ
VCC
1kΩ
A13112
A13113
Continued on next page.
No. 6469-9/12