參數(shù)資料
型號(hào)： LM4668MH/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, PDSO20
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 472K
代理商： LM4668MH/NOPB
LM4668
10W High-Efficiency Mono BTL Audio Power Amplifier
General Description
The LM4668 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 6W to
an 8
mono BTL load with less than 1% distortion (THD+N)
from a 12V
DC power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4668 features a micro-power,
active-low shutdown mode, an internal thermal shutdown
protection mechanism, and short circuit protection.
The LM4668 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%, RL =8
)
10W (typ)
j Quiescent Power Supply Current
30mA (typ)
j Efficiency (VDD = 12V, fIN = 1kHz,
R
L =8
,P
OUT = 6W)
79% (typ)
j Shutdown Current
0.15mA (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
n
Short circuit protection
n
Fixed, internally set gain of 30dB
Applications
n
Flat Panel Monitors
n
Flat Panel TVs
n
Computer Sound Cards
Connection Diagrams
LD Package
MH Package
20089102
Top View
Order Number LM4668LD
See NS Package Number LDC14A
200891G3
Top View
Order Number LM4668MH
See NS Package Number MXA20A
Boomer is a registered trademark of National Semiconductor Corporation.
October 2004
LM4668
10W
High-Efficiency
Mono
BTL
Audio
Power
Amplifier
2004 National Semiconductor Corporation
DS200891
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4668MHX/NOPB 功能描述:IC AMP AUDIO 10W MONO D 20TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
LM4670 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Filterless High Efficiency 3W Switching Audio Amplifier
LM4670_06 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Filterless High Efficiency 3W Switching Audio Amplifier
LM4670ITL 功能描述:IC AMP AUDIO PWR 3W MONO D 9USMD RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機(jī) 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點(diǎn):消除爆音，差分輸入，I²C，靜音，關(guān)閉，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) 其它名稱:MAX97000EWA+T-ND
LM4670ITL/NOPB 功能描述:音頻放大器 Filterless Hi Eff 3W Switching Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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