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LM1877 Dual Audio Power Amplifier

February 1995

LM1877

Dual Audio Power Amplifier

General Description

The LM1877 is a monolithic dual power amplifier designed to

deliver 2W/channel continuous into 8鈩?loads. The LM1877 is

designed to operate with a low number of external compo-

nents, and still provide flexibility for use in stereo phono-

graphs, tape recorders and AM-FM stereo receivers, etc.

Each power amplifier is biased from a common internal regu-

lator to provide high power supply rejection, and output Q

point centering. The LM1877 is internally compensated for

all gains greater than 10.

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Wide supply range, 6V鈥?4V

Very low cross-over distortion

Low audio band noise

AC short circuit protected

Internal thermal shutdown

Applications

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Multi-channel audio systems

Stereo phonographs

Tape recorders and players

AM-FM radio receivers

Servo amplifiers

Intercom systems

Automotive products

Features

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2W/channel

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鈭?5 dB ripple rejection, output referred

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鈭?5 dB channel separation, output referred

Connection Diagram

Dual-In-Line Package

or Surface Mount Package

DS007913-1

Top View

Order Number LM1877M-9 or LM1877N-9

See NS Package Number M14B or N14A

漏 1999 National Semiconductor Corporation

DS007913

www.national.com

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