參數(shù)資料
型號: LM4680SD/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 10 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO14
封裝: LLP-14
文件頁數(shù): 1/11頁
文件大?。?/td> 754K
代理商: LM4680SD/NOPB
LM4680
10W High-Efficiency Mono BTL Audio Power Amplifier
General Description
The LM4680 is a high efficiency switching audio power
amplifier primarily designed for demanding applications in
flat panel monitors and TV’s. It is capable of delivering 10W
to an 8
mono BTL load with less than 10% distortion
(THD+N) when powered from a 14V
DC power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4680 features a micro-power,
active-low shutdown mode, an internal thermal shutdown
protection mechanism, output fault detect, and short circuit
protection.
The LM4680 contains advanced transient (“pop and click”)
suppression circuitry that eliminates noises that would oth-
erwise occur during turn-on and turn-off transitions.
Key Specifications
j Power Output BTL (VDD = 14V,
f
IN = 1kHz, THD+N = 10%,
R
L =8
)
10W (typ)
j Quiescent Power Supply Current
25mA (typ)
j Efficiency (VDD = 12V, fIN = 1kHz,
R
L =8
,P
OUT = 6W)
81% (typ)
j Shutdown Current
0.1mA (typ)
j Fixed Gain
30dB (typ)
Features
n
Soft-start circuitry eliminates noise during turn-on
transition
n
Low current shutdown mode
n
Low quiescent current
n
6W BTL output, R
L =8
, THD+N = 1%
n
Short circuit protection
n
Fixed, internally set gain of 30dB
n
Internal clamp diodes protect amplifier outputs
Applications
n
Flat Panel Monitors
n
Flat Panel TVs
n
Computer Sound Cards
Connection Diagram
Plastic Package
20095802
Top View
Order Number LM4680SD
See NS Package Number SRC14A
Boomer is a registered trademark of National Semiconductor Corporation.
January 2005
LM4680
10W
High-Efficiency
Mono
BTL
Audio
Power
Amplifier
2005 National Semiconductor Corporation
DS200958
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
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