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Número de pieza
componentes Descripción
APA2171K Ver la hoja de datos (PDF) - Anpec Electronics
Número de pieza
componentes Descripción
Fabricante
APA2171K
(APA2120 / APA2121) Stereo 2-W Audio Power Amplifier
Anpec Electronics
APA2171K Datasheet PDF : 21 Pages
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APA2171
Typical Application Circuit (Cont.)
Line Driver Amplifier (Cont.)
3. Differential
R
FB
R-CH
Input
L-CH
Input
C
IN
1
µ
F
R
IN
C
IN
R
IN
1
µ
F
R
FB
C
IN
1
µ
F
R
IN
R
FB
C
IN
R
IN
1
µ
F
Shutdown SDN
Control
R
FB
RINN
RINP
LINP
LINN
R
SD
100
Ω
Thermal
and Over
Current
Protection
Shutdown
Circuit
ROUT
R-CH
Output
Under Voltage
Detection Circuit
Power
and
Depop
Circuit
Charge
Pump
LOUT
UVP
VDD
L-CH
Output
R1
3k
Ω
R3
50k
Ω
R2
1k
Ω
LDO
CPP
1
µ
F
C
CPF
1
µ
F
CPN
System
Power
10
µ
F
Second-Order Active Low-Pass Filter
1. Differential
GND PGND
VSS
C
CPO
1
µ
F
R-CH
Input
L-CH
Input
R2
C3
R1
C2
R1
C3
R2
C1
R3
R3
C1
RINN
RINP
C1
C3
R1
R2 R2
C1
C1
LINP
C2
R3
LINN
R1
C3
R3
C1
Shutdown SDN
Control
R
SD
100
Ω
Thermal
and Over
Current
Protection
Shutdown
Circuit
ROUT
C
out
220pF
R-CH
Output
Under Voltage
Detection Circuit
Power
and
Depop
Circuit
Charge
Pump
C
out
220pF
LOUT
UVP
VDD
L-CH
Output
R1
3k
Ω
R3
50k
Ω
R2
1k
Ω
LDO
CPP
1
µ
F
C
CPF
1
µ
F
CPN
System
Power
10
µ
F
GND PGND
VSS
C
CPO
1
µ
F
Copyright
©
ANPEC Electronics Corp.
11
Rev. A.4 - Aug., 2013
www.anpec.com.tw
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