MOSA

MS6901

Mono 1.1W Power Amplifier with Shutdown Selection

REV 1

1/9

www.mosanalog.com

Mono 1.1W Power Amplifier

Selectable Shutdown Logic Level

Low Voltage Operation

FEATURES

‧

Operation range: 2.5V ~ 6.5V

‧

Shutdown Current 0.1uA at 5V

‧

PSRR at 217Hz, 60dB at 5V

‧

Output power, THD+N=1%

‧

Unity-gain stable

‧

Space-saving MSOP10, enhance thermal pad

APPLICATIONS

‧

Portable electronic devices

‧

PDAs

‧

Communication headsets

‧

Cross-reference:

LM4901

DESCRIPTION

The MS6901 is a low distortion power amplifier that can drive 1.1W of continuous average power into a mono 8Ω

bridged-tied load (BTL). Operation with 2.5V supply, it can drive 200mw into a mono 8Ω. The shutdown may be

enabled by either logic high or logic low that depending on shutdown mode selection. The BTL configuration

eliminates the need for external coupling capacitors on the output in most applications. The MS6901 is unity-gain

stable and can be configured by external gain-setting resistors.

The MS6901 has good feature for portable equipment, these features include the low voltage operation, micropower

consumption shutdown mode, enhance thermal pad and small package MSOP10, make the MS6901 ideally suited for

use in portable electronic equipments.

BLOCK DIAGRAM

SD Mode

A2

-

+

-IN

BP

SD

Vo1

+IN

A1

-

+

Bias

control

Vo2

V

DD

GND

1

2

3

4

5

10

6

7, 9

8

-

-

+