TLH7920

February 1995

LM1896LM2896 Dual Audio Power Amplifier

General Description

The LM1896 is a high performance 6V stereo power amplifi-

er designed to deliver 1 wattchannel into 4X or 2 watts

bridged monaural into 8X Utilizing a unique patented com-

pensation scheme the LM1896 is ideal for sensitive AM

radio applications This new circuit technique exhibits lower

wideband noise lower distortion and less AM radiation than

conventional designs The amplifier’s wide supply range

(3V – 9V) is ideal for battery operation For higher supplies

line package The LM2896 package has been redesigned

resulting in the slightly degraded thermal characteristics

shown in the figure Device Dissipation vs Ambient Tempera-

ture

Features

Y

Low AM radiation

Y

Low noise

Y

Y

Wide supply operation 3V – 15V (LM2896)

Y

Low distortion

Y

No turn on ‘‘pop’’

Y

Adjustable voltage gain and bandwidth

Y

Smooth waveform clipping

Y

Applications

Y

Compact AM-FM radios

Y

Stereo tape recorders and players

Y

High power portable stereos

Typical Applications

TLH7920 – 1

Order Number LM1896N

Order Number LM2896P

See NS Package Number N14A

See NS Package Number P11A

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A