MOSA

MS6853

Mono 1.9W / Stereo 300mW Power Amplifier

REV 6

1/14

www.mosanalog.com

Mono 1.9W / Stereo 300mW Power Amplifier

Low Voltage Operation, Shutdown Function

FEATURES

‧

Operation range: 2.4V ~ 6.5V

‧

Shutdown Current 18uA at 5V

‧

Output power, THD+N=1%

‧

Headphone sense

‧

Unity-gain stable, pop noise free

‧

Space-saving MSOP10 (enhance thermal pad), TSSOP14

APPLICATIONS

‧

Desktop computer’s sound card

‧

Portable audio devices

‧

PDA

‧

Handheld games

‧

Communication headsets

‧

Cross-reference:

SSM2250, LM4853, LM4858

DESCRIPTION

The MS6853 is a low distortion power amplifier that can drive a set of 1.9W of continuous average power into a mono

switch between mono BTL and stereo SE modes utilizing a headphone sense pin. The BTL configuration eliminates

the need for external coupling capacitors on the output in most applications. The unity gain stable MS6853’s gain is set

by external gain-setting resistors.

The MS6853 has good feature for portable equipment, these features include the low voltage operation, micropower

consumption shutdown mode, enhance thermal pad and small package MSOP10, TSSOP14, make the MS6853 ideally

suited for use in portable digital audio equipments.

BLOCK DIAGRAM

SHUTDOWN

A2

-

+

L-IN

GND

V

DD

BYPASS

R-IN

BTL OUT+

R-OUT

L-OUT / BTL OUT-

HP-IN

V

DD

Mono / Stereo Mode

Switching Circuitry

A3

-

+

A1

-

+

V

DD

Click/Pop

Reduction

Bias