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参数资料
| 型号： | LM4668MH/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 10 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 文件页数： | 1/14页 |
| 文件大小： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4668MHX/NOPB | 功能描述:IC AMP AUDIO 10W MONO D 20TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| LM4670 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Filterless High Efficiency 3W Switching Audio Amplifier |
| LM4670_06 | 制造商:NSC 制造商全称: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 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:D 类 输出类型:1-通道（单声道），带立体声耳机 在某负载时最大输出功率 x 通道数量:930mW x 1 @ 8 欧姆; 40mW x 2 @ 16 欧姆 电源电压:2.7 V ~ 5.5 V 特点:消除爆音，差分输入，I²C，静音，关闭，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) 其它名称:MAX97000EWA+T-ND |
| LM4670ITL/NOPB | 功能描述:音频放大器 Filterless Hi Eff 3W Switching Audio Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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