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參數(shù)資料
| 型號： | LM4809MWC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.105 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封裝： | WAFER |
| 文件頁數(shù)： | 13/21頁 |
| 文件大小： | 946K |
| 代理商： | LM4809MWC |
National P/N LM4809 - LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode
LM4809 MDC
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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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4809MX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM4810 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 105mW Headphone Amplifier with Active-High Shutdown Mode |
| LM48100Q | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Mono, 1.3W Audio Power Amplifier with Output Fault Detection and Volume Control |
| LM48100QMH | 功能描述:音頻放大器 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM48100QMH/NOPB | 功能描述:音頻放大器 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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