Diodes PAM8403 - Manual

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