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AD51652 Datasheet

3W Mono Filter-less Class-D Audio Amplifier

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AD51652 pdf
ESMT
Preliminary
AD51652
3W Mono Filter-less Class-D Audio Amplifier
Features
Supply voltage range: 2.5 V to 5.5 V
Support single-ended or differential analog
input
Low Quiescent Current
Low Output Noise
Low shut-down current
Short power-on transient time
Internal pull-low resistor on shut-down pins
Short-circuit protection
Over-temperature protection
Loudspeaker power within 10% THD+N
1.78W/ch into 8loudspeaker
>3W/ch into 4loudspeaker
Loudspeaker efficiency
93% @ 8, THD+N=10%
85% @ 4, THD+N=10%
MSOP-8L, TDFN-8L and 0.4mm ball pitch
WLCSP-9L packages
Integrated Feedback Resistor of 300k
Applications
Monitor audio
PDA
Portable multimedia devices
Notebook computer
Mobile phone
Description
The AD51652 is a 3.0W mono, filter-less
class-D audio amplifier. Operating with 5.0V
loudspeaker driver supply, it can deliver 3.0W
output power into 4 loudspeaker within 10%
THD+N or 2.6W at 1% THD+N.
The AD51652 is a mono audio amplifier with
high efficiency and suitable for the notebook
computer, and portable multimedia device.
Functional Block Diagram
Gain=300k /Rin
+ Cin
Differential
input
- Cin
Rin INP
Rin
INN
SD
~150k
+-
-+
PWM
Generator
~150k
-wave
Generator
~300k
Loudspeaker
Driver
Overload, Voltage
& Thermal
Protection
VDD
VOP
VON
GND
Elite Semiconductor Memory Technology Inc.
Publication Date: Mar. 2014
Revision: 0.03
1/18
Elite Semiconductor
Elite Semiconductor


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