Diodes PAM8403 User Manual
Pam8403, Description, Features

PAM8403
Document number: DSxxxxx Rev. 1 - 4
1 of 11
www.diodes.com
November 2012
© Diodes Incorporated
PAM8403
A Product Line of
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