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| 型号： | LM4918LQ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC32 |
| 封装： | LLP-32 |
| 文件页数： | 1/17页 |
| 文件大小： | 646K |
| 代理商： | LM4918LQ/NOPB |
LM4918
Stereo Audio Amp with AGC Control
General Description
The LM4918 is a monolithic integrated circuit that provides a
automatic gain control (AGC), and stereo bridged audio
power amplifiers capable of producing 1W into 8
with less
than 1.0% THD.
Boomer audio integrated circuits were designed specifically
to provide high quality audio while requiring a minimum
amount of external components. The LM4918 incorporates a
AGC and stereo bridged audio power amplifiers making it
optimally suited for multimedia monitors, portable radios,
desktop and portable computer applications.
The LM4918 features an externally controlled, low-power
consumption shutdown mode, and a power amplifier mute
for maximum system flexibility and performance.
Key Specifications
j THD+N at 1kHz, 1W, 8
0.3% (typ)
j Total quiescent power supply current
18mA (typ)
j Total shutdown power supply current
1A (typ)
Features
n
0.75dB per step/32step AGC Control Interface
n
Automatic Gain Control Circuitry
n
Stereo Bridged power amplifiers
n
“Click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
n
Selectable Auto Detect Std-by mode and Logic control
Applications
n
Portable Computers
n
Desktop Computers
n
Multimedia monitors
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
20091301
FIGURE 1. Typical Audio Amplifier Application Circuit
February 2004
LM4918
Stereo
Audio
Amp
with
AGC
Control
2004 National Semiconductor Corporation
DS200913
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4919 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Amplifier |
| LM4919A WAF | 制造商:Texas Instruments 功能描述: |
| LM4919MM | 制造商:Texas Instruments 功能描述:AMP STEREO H/P 1.5V 14MW SMD 4919 |
| LM4919MM/NOPB | 功能描述:IC AMP AUDIO MONO/STER AB 10MSOP 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) |
| LM4919MMBD | 功能描述:BOARDS EVALUATION LM4919MM RoHS:否 类别:编程器，开发系统 >> 评估板 - 音频放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
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