MOSA

MS6890

Mono 1.1W Power Amplifier with Shutdown

REV 4

1/10

www.mosanalog.com

Mono 1.1W Power Amplifier

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 SOP8, MSOP8 and enhance thermal pad

APPLICATIONS

‧

Portable electronic devices

‧

PDAs

‧

Communication headsets

‧

Cross-reference:

LM4890, LM4893, TS4890

TPA751, MAX9716

DESCRIPTION

The MS6890 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 BTL configuration

eliminates the need for external coupling capacitors on the output in most applications. The MS6890 is unity-gain

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

The MS6890 has good feature for portable equipment, these features include the low voltage operation, micropower

consumption shutdown mode, enhance thermal pad and small package SOP8, MSOP8, make the MS6890 ideally

suited for use in portable electronic equipments.

BLOCK DIAGRAM

A2

-

+

-IN

GND

V

DD

BP

SHDN

Vo1

+IN

A1

-

+

Bias

control

6

1

2

3

4

8

Vo2

5

7

-

+