Pin Assignment
LA4571MB
Top view
Pin Description
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
PRE GND
IN1
NF1
PRE OUT1
SW OUT1
POWER IN1
PRE MUTE
RF REF
VCC
POWER GND
COMMON
OUT1
OUT2
POWER MUTE
POWER IN2
SW OUT2
PRE OUT2
NF2
IN2
VREF
Description
Preamplifier ground
Channel 1 preamplifier input
Channel 1 preamplifier negative feedback input
Channel 1 preamplifier output
Channel 1 preamplifier mute-control switched output RIN ≥ 500kΩ
Channel 1 power amplifier input. RIN≅30kΩ
Preamplifier mute control
Ripple-filter capacitor connection
Supply voltage
Power amplifier ground
Common amplifier output
Channel 1 power amplifier output
Channel 2 power amplifier output
Power amplifier mute control
Channel 2 power amplifier input. RIN≅30kΩ
Channel 2 preamplifier mute-control switched output. RIN ≥ 500kΩ
Channel 2 preamplifier output
Channel 2 preamplifier negative feedback input
Channel 2 preamplifier input
Referecne-voltage amplifier output. Imax=±500µA
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