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LM831 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM831
Description  LM831 Low Voltage Audio Power Amplifier
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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TLH6754
December 1994
LM831 Low Voltage Audio Power Amplifier
General Description
The LM831 is a dual audio power amplifier optimized for
very low voltage operation The LM831 has two indepen-
dent amplifiers giving stereo or higher power bridge (BTL)
operation from two- or three-cell power supplies
The LM831 uses a patented compensation technique to re-
duce high-frequency radiation for optimum performance in
AM radio applications This compensation also results in
lower distortion and less wide-band noise
The input is direct-coupled to the LM831 eliminating the
usual coupling capacitor Voltage gain is adjustable with a
single resistor
Features
Y
Low voltage operation 18V to 60V
Y
High power 440 mW 8X BTL 3V
Y
Low AM radiation
Y
Low noise
Y
Low THD
Applications
Y
Portable tape recorders
Y
Portable radios
Y
Headphone stereo
Y
Portable speakers
Typical Application
Dual Amplifier with Minimum Parts
TLH6754 – 1
AVe46 dBBWe250 Hz to 35 kHz
POUT e 220 mWChRL e 4X
C1995 National Semiconductor Corporation
RRD-B30M115Printed in U S A




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