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 8Ω 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–24V
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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−65 dB ripple rejection, output referred
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−65 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
© 1999 National Semiconductor Corporation
DS007913
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
