la4820m Sanyo Semiconductor Corporation, la4820m Datasheet - Page 8

• Manufacturer Part Number: la4820m
• Description: Monaural Speaker/stereo Headphone Power Amplifier
• Manufacturer: Sanyo Semiconductor Corporation

Continued from preceding page.
Pin No.
10
11
12
7
8
9
PRE GND
V
V
REF
PWRC CONT
DET OUT
REF
REF
REF
Pin Name
Pin Voltage
0.5 to 1.0
2.8
2.8
5.1
0.8
LA4820M
Internal equivalent circuit
V
REF
c Connects small-signal block to
c Virtual ground bias pin.
c Impedance is lowered by V
c V
V
c LPF pin for V
c LPF pin for internal ripple filter
c Voltage of V
c HzP Power is such that the
c PVSS, output limiter,
c The attack and recovery time
REF
GND.
amplifier. (ro = 10
the following formula:
reference bias.
reference bias.
common amplifier turns off and
the output common capacitor
mode is entered when pin 11 is
pulled down.
non-clipping circuit ALC
rectification pin.
are determined by the external
capacitance and resistance.
REF
= V
voltage is determined by
CC
Continued on next page.
2 voltage (pin 22)
Remarks
CC
REF
2 − 0.4 V.
2
amplifier
No.5205-8/20
or less)
REF
(V)