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LR6311 Datasheet(PDF) 2 Page - Leshan Radio Company

Part # LR6311
Description  3 Watt Mono Filter-Free Class-D Audio Power Amplifier
PDF  13 Pages
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR6311 Datasheet(HTML) 2 Page - Leshan Radio Company

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background image
Pin Diagrams
1
2
3
A
B
C
top view
IN+
GND
VO-
VDD
PVDD
PGND
IN-
SDB
VO+
Pin Description
Pin #
Name
Description
A1
IN+
Positive differential input
A2
GND
Power Ground
A3
VO-
Negative BTL output
B1
VDD
Power Supply
B2
PVDD
Power Supply
B3
PGND
Power Ground
C1
IN-
Negative differential input
C2
SDB
Shutdown terminal (low active)
C3
VO+
Positive BTL output
Function Block Diagram
Vo+
Vo-
150k
150k
IN+
IN-
Amp1
Av1 = 150k/Ri
ShutDown
Control
Bias &
Reference
OSC &
RAMP
OC
Detect
Start up &
Protection
300k
SDB
PVDD
PGND
GND
VDD
(B1)
(B2)
(A3)
(C3)
(B3)
(A2)
(C1)
(A1)
(C2)
PWM Modulator and
Power Driver
Av2 = 2 V/V
Notes:
I
R
k
Av
Av
Gain
Voltage
Total
150
2
2
1
×
=
×
=
Figure 1. Function Block Diagram
Leshan Radio Co ., Ltd
2/13



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