beautypg.com

Diodes PAM8603A User Manual

Pam8603a, Description, Features

background image

PAM8603A

Document number: DSxxxxx Rev. 1 - 2

1 of 16

www.diodes.com

November 2012

© Diodes Incorporated

PAM8603A

A Product Line of

Diodes Incorporated

ANTI-SATURATION FILTERLESS 3W CLASS-D STEREO AMPLIFIER

WITH DC VOLUME CONTROL AND HEADPHONE OUTPUT

Description

The PAM8603A is a 3W, Class-D audio amplifier with headphone
amplifier. Advanced 64-Step DC volume control minimizes external
components and allows speaker volume control and headphone
volume control. PAM unique antisaturation technology which detects
output signal clip due to the over level input signal suppress the
output signal clip automatically. Also the antisaturation function can
adapt the output clip caused by power supply voltage down with
battery. It offers low THD+N, to produce highquality sound
reproduction. The new filterless architecture allows the device to
drive the speaker directly, without low-pass output filters which will
save system cost and PCB area.


With the same numbers of external components, the efficiency of the
PAM8603A is much better than Class-AB cousins. It can extend the
battery life thus be ideal for portable applications.

The PAM8603A is available in a SSOP-24 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

64-Step DC Volume Control

Headphone Output Function

Unique Anti-Saturation Function

Superior Low Noise

Low Pop 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

• VoIP/Speakers

Phones