PAM8406

Document number: DSxxxxx Rev. 1 - 0

1 of 14

www.diodes.com

March 2013

© Diodes Incorporated

PAM8406

A Product Line of

Diodes Incorporated

ALTERNATIVE 5W STEREO AUDIO AMPLIFIER

Description

The PAM8406 is a 5W audio amplifier with an alternative option

between Class-D and Class-AB output which makes PAM8406 very

ideally for the applications efficiency-EMI compatible.

PAM8406 offers low THD+N, high SNR allowing it to achieve high-

quality sound reproduction. The fully differential output wi th new filter

less architecture (Class-D Mode) allows the device to drive the

speaker directly, requiring no low-pass output filters and DC blocking

capacitors, thus to save the system cost and PCB area.

The efficiency of the PAM8406 is up to 90%. It can extend the battery

life, ideally for portable applications. The PAM8406 is fully protected

against faults with short circuit protection and thermal protection.

The PAM8406 is available in SOP-16L/SOP-16(EP) package.

Features



Alternative Output: Class-D or Class-AB



5W Output at 10% THD with a 2Ω Load and 5V Power Supply

at Class-D Mode



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



Filterless, Low Quiescent Current and No EMI



Low THD+N at Fully Output Range



Superior Low Noise



Efficiency up to 90% with Class-D Mode



No Pop At Turn-on/off



Fully Short Circuit Protection With Auto Recovery



Thermal Shutdown



Few External Components to Save the Space and Cost



SOP-16L/SOP-16(EP) Package

Pin Assignments

Applications



LCD TVs



Mutimedia Speakers



AM/FM System



DABs

Typical Applications Circuit