Pin Functions
Pin No.
Pin
Voltage
LA9511W
Function
1
BNDSEL
1.2 Must be connected to ground in normal operation.
Sets the external reference current.
2
REF-R
1.25
2
Typical value (1% metal film resistor)
A13032
3
ALC L OUT
VCC/2 Left channel ALC monitor output
4
Xtal-SEL
Selects 3.58 or 4.43 MHz for the Xtal-IN pin.
1.2 Open or high: 3.58 MHz
Low: 4.43 MHz
5
ALC R OUT
VCC/2 Right channel ALC monitor output
6
NC
—
Crystal element connection. Alternatively, an external
fsc clock signal may be input.
7
Xtal-IN
VCC/2
The fsc signal must have an amplitude greater than 0.2
Vpp.
8
A-GND
9
A-GND
0
Audio system ground
0
Audio system ground
Audio PLL loop filter
VCC/2
10
LPF-L
(When PLL
locked)
10
A VREF
44
150kΩ
Audio PLL loop filter
VCC/2
11
LPF-R
(When PLL
locked)
11
A VREF
44
150kΩ
12
OSC-VCC
VCC Crystal oscillator power supply
A13038
A13040
Equivalent circuit
200Ω
40kΩ
1
2
A13030
A13031
300Ω
3
A-VREF
A13033
200Ω
40kΩ
4
A13034
300Ω
5
60kΩ
20kΩ
7
A-VREF
A13035
80pF
A13036
450kΩ
10
500Ω
450kΩ
11
500Ω
AVCO L
AVREF
Charge pump
A13037
AVCO R
AVREF
Charge pump
A13039
Continued on next page.
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