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LM4816 Datasheet

  • LM4816

  • National Semiconductor [1W Stereo Audio Amplifier + Adjusta...

  • 429.49KB

  • NSC

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LM4816 1W Stereo Audio Amplifier + Adjustable Output Limiter
October 2003
LM4816
1W Stereo Audio Amplifier + Adjustable Output Limiter
General Description
The LM4816 combines a bridged-connected (BTL) stereo
audio power amplifier with an adjustable output voltage mag-
nitude limiter. The audio amplifier delivers 1.0W to an 8鈩?/div>
load with less than 1.0% THD+N while operating on a 5V
power supply. With V
LIM
set to 1.0V, the amplifier outputs are
clamped to 6V
p-p
,
卤
800mV.
The LM4816 features an external controlled micropower
shutdown mode and thermal shutdown protection. It also
utilizes circuitry that reduces 鈥渃licks and pops鈥?during device
turn-on and return from shutdown.
Boomer audio power amplifiers are designed specifically to
use few external components and provide high quality output
power in a surface mount package.
Key Specifications
j
P
OUT
(BTL):
V
DD
= 5V, THD = 1%, R
L
= 8鈩?/div>
j
Power supply range
j
Limiter adjustment range
j
Shutdown current
1.0W (typ)
3.0V to 5.5V
GND to V
DD
/2
0.06碌A (typ)
Features
n
n
n
n
n
n
Stereo BTL amplifier
Adjustable output voltage magnitude limiter
鈥淐lick and pop鈥?suppression circuitry
Unity-gain stable audio amplifiers
Thermal shutdown protection circuitry
TSSOP (MT) package
Applications
n
n
n
n
Notebook computers
Multimedia monitors
Desktop computers
Portable televisions
Typical Application
20033201
Boomer
庐
is a registered trademark of National Semiconductor Corporation.
漏 2003 National Semiconductor Corporation
DS200332
www.national.com

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