参数资料
型号: LA4820M
元件分类: 音频/视频放大
英文描述: 0.12 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24
封装: MFP-24
文件页数: 20/21页
文件大小: 637K
代理商: LA4820M
Continued from preceding page.
Pin No.
Pin Name
Pin Voltage
Internal equivalent circuit
Remarks
7
PRE GND
c Connects small-signal block to
GND.
8VREF
2.8
VREF
c Virtual ground bias pin.
c Impedance is lowered by VREF
amplifier. (ro = 10
or less)
c VREF voltage is determined by
the following formula:
VREF = VCC2 voltage (pin 22)
2
(V)
9VREFREF
2.8
c LPF pin for VREF amplifier
reference bias.
10
REF
5.1
c LPF pin for internal ripple filter
reference bias.
c Voltage of VCC2 – 0.4 V.
11
PWRC CONT
0.8
c HzP Power is such that the
common amplifier turns off and
the output common capacitor
mode is entered when pin 11 is
pulled down.
12
DET OUT
0.5 to 1.0
c PVSS, output limiter,
non-clipping circuit ALC
rectification pin.
c The attack and recovery time
are determined by the external
capacitance and resistance.
Continued on next page.
LA4820M
No.5205-8/21
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