MOSA

MS6865

3 Stereo inputs / 2W PA output with Volume Control

REV 1.0

1

www.mosanalog.com

Dual 2W Power Amplifier

3 Stereo Inputs with Volume Control

FEATURES

•Operation range: 2.4V~5.5V

•3 stereo inputs

•Volume control range

Gain: 0 to 21dB, 3dB/step

Attenuation: 0 to -77.5dB, 1.25dB/step

•Output mode : Speaker( BTL)/Headphone(SE)

•BTL Output power

•SE Output power

•Control interface : I

•Excellent Power Supply Rejection Ratio(PSRR)

•Flexibility power management

•Component less

•Reduce pop noise circuit

•Housed in TSSOP20 package, enhanced thermal

PAD

APPLICATIONS

Multimedia system, Portable Digital Audio.

DESCRIPTION

The MS6865 is low distortion stereo power amplifier that has 3 stereo inputs with volume control. It can drive 2W of

continuous average power into a dual 4

bridged-tied (BTL) speaker or 2 * 90mW into stereo 32

single ended (SE)

headphone. The volume control offers wide range of gain and attenuation for stereo input. All of the functions are easy

setting that can be set by I2C interface.

The MS6865 has good features for portable equipment, including wide voltage operation 2.4V~5.5V, low power

consumption, power management, component less and small package TSSOP20, make the MS6865 ideally suitable for

use in the portable digital audio equipments.

BLOCK DIAGRAM

OUTR+

OUTR-

OUTL+

OUTL-

-1

-1

-1

-1

CAP

AV

DD

AV

SS

SCL

SDA

Supply

Power Amplifier

Supply

PV

PV

DDL

PV

SSL

V

SS

RIN2

RIN1

Attenuation

&

Mute

LIN1

LIN2

LIN3

RIN3

Attenuation

&

Mute

L-ch selector

& Gain

R-ch selector

& Gain