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参数资料
| 型号： | LM4809MDC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.105 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封装： | DIE |
| 文件页数： | 13/21页 |
| 文件大小： | 946K |
| 代理商： | LM4809MDC |
National P/N LM4809 - LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode
LM4809 MDC
Full production
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LM4809 MWC
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General Description
The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average
power into a 16
load with 0.1% (THD+N) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a
minimal amount of external components. Since the LM4809 does not require bootstrap capacitors or snubber
networks, it is optimally suited for low-power portable systems.
The unity-gain stable LM4809 can be configured by external gain-setting resistors.
The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well
as an internal thermal shutdown protection mechanism.
Features
q
Active-low shutdown mode
q
"Click and Pop" reduction circuitry
q
Low shutdown current
q
LLP, MSOP, and SO surface mount packaging
q
No bootstrap capacitors required
q
Unity-gain stable
Key Specification
THD+N at 1kHz at 105mW continuous average power into 16
0.1% (typ)
THD+N at 1kHz at 70mW continuous average power into 32
0.1% (typ)
Shutdown Current 0.4A (typ)
Applications
q
Headphone Amplifier
q
Personal Computers
q
Microphone Preamplifier
q
PDA's
[Information as of 5-Aug-2002]
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4809MM | 功能描述:音频放大器 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 |
| LM4809MM/NOPB | 功能描述:音频放大器 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 |
| LM4809MMX | 功能描述:音频放大器 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 |
| LM4809MMX/NOPB | 功能描述:音频放大器 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 |
| LM4809MX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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