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Elite Semiconductor

AD5165A Datasheet Preview

AD5165A Datasheet

2.5W Mono Filter-less Class-D Audio Amplifier

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ESMT
Preliminary
AD5165A
2.5W Mono Filter-less Class-D Audio Amplifier
Features
z Supply voltage range: 2.5 V to 5.5 V
z Support single-ended or differential analog input
z Low static operation current
z Low shut-down current
z Short power-on transient time
z Internal pull-low resistor on shut-down pins
z Short-circuit protection
z Over-temperature protection
z Loudspeaker power within 10% THD+N
„ 1.5W/ch into 8Ω loudspeaker
„ 2.5W/ch into 4Ω loudspeaker
z Loudspeaker efficiency
„ 89% @ 8Ω, THD+N=10%
„ 84% @ 4Ω, THD+N=10%
Applications
z Monitor audio
z PDA
z Portable multimedia devices
z Notebook computer
z Mobile phone
Functional Block Diagram
Description
The AD5165A is a mono, filter-less class-D audio
amplifier. Operating with 5.0V loudspeaker driver
supply, it can deliver 2.5W output power into 4 Ω
loudspeaker within 10% THD+N.
The AD5165A packaged as DFN 8L is a mono
audio amplifier with high efficiency and suitable for
the notebook computer, and portable multimedia
devices.
Ordering Information
Part Number
Package
Comments
AD5165A DFN 8L, 3x3 mm Pb-free
Gain=300k /Rin
+ Cin
Differential
input
- Cin
Rin INP
Rin
INN
~300k
+-
-+
~300k
PWM
Generator
-wave
Generator
SD#
~300k
PVDD; AVDD
Cs
Loudspeaker
Driver
PWMA
PWMB
Overload, Voltage
& Thermal
Protection
Thermal Pad; PGND
Elite Semiconductor Memory Technology Inc.
Publication Date: Sep. 2007
Revision: 0.1
1/12




Elite Semiconductor

AD5165A Datasheet Preview

AD5165A Datasheet

2.5W Mono Filter-less Class-D Audio Amplifier

No Preview Available !

ESMT
Pin Assignments
Preliminary
DFN 8L, 3x3mm
SD# 1
AVDD 2
INP 3
INN 4
8 PWMB
7 PGND
9:Thermal Pad
6 PVDD
5 PWMA
AD5165A
Pin Description
Pin
NAME
TYP DESCRIPTION
1 SD# I Shutdown AD5165A (Low active logic)
2
AVDD
P Power Supply
3 INP I Positive differential input
4 INN I Negative differential input
5
PWMA
O Positive output
6
PVDD
P High current power supply
7
PGND
G High current ground
8
PWMB
O Negative output
9 Thermal Pad G Must be soldered to PCB’s ground plane
Available Package
Package Type
DFN 8L (3x3)
Device no.
AD5165A
θJA (oC/W)
45.8
Exposed Thermal Pad
Yes
Note1: The thermal pad is at the bottom of package. To optimize the performance of thermal
dissipation, solder the thermal pad to PCB’s ground plane is suggested.
Elite Semiconductor Memory Technology Inc.
Publication Date: Sep. 2007
Revision: 0.1
2/12



Part Number AD5165A
Description 2.5W Mono Filter-less Class-D Audio Amplifier
Maker Elite Semiconductor
Total Page 3 Pages
PDF Download

AD5165A Datasheet PDF





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