Diodes PAM8403 User Manual download pdf

PAM8403

Document number: DSxxxxx Rev. 1 - 4

1 of 11

www.diodes.com

November 2012

PAM8403

Product Line o

Diodes Incorporated

FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER

Description

The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N,

allowing it to achieve high-quality sound reproduction. The new

filterless architecture allows the device to drive the speaker directly,

requiring no low-pass output filters, thus saving system cost and PCB

area.

With the same numbers of external components, the efficiency of the

PAM8403 is much better than that of Class-AB cousins. It can extend

the battery life, which makes it well-suited for portable applications.

The PAM8403 is available in SOP-16 package.

Features

 3W Output at 10% THD with a 4Ω Load and 5V Power Supply

 Filterless, Low Quiescent Current and Low EMI

 Low THD+N

 Superior Low Noise

 Efficiency up to 90%

 Short Circuit Protection

 Thermal Shutdown

 Few External Components to Save the Space and Cost

 Pb-Free Package

Pin Assignments

Applications

 LCD Monitors / TV Projectors

 Notebook Computers

 Portable Speakers

 Portable DVD Players, Game Machines

 Cellular Phones/Speaker Phones

Typical Applications Circuit

1 2 3 4 5 6 ... 10 11

Summary of Contents

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Page 2 - Functional Block Diagram

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Page 7 - Application Information

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