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参数资料
| 型号： | LM4880MDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.325 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封装： | DIE |
| 文件页数： | 1/15页 |
| 文件大小： | 418K |
| 代理商： | LM4880MDA |
LM4880
Dual 250 mW Audio Power Amplifier with Shutdown
Mode
General Description
The LM4880 is a dual audio power amplifier capable of deliv-
ering typically 250mW per channel of continuous average
power to an 8
load with 0.1% THD+N using a 5V power
supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components using surface mount packaging.
Since the LM4880 does not require bootstrap capacitors or
snubber networks, it is optimally suited for low-power por-
table systems.
The LM4880 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4880 can be configured by external
gain-setting resistors.
Key Specifications
n
THD+N at 1kHz at 200mW continuous average output
power into 8
: 0.1% (max)
n
THD+N at 1kHz at 85mW continuous average output
power into 32
: 0.1% (typ)
n
Output power at 10% THD+N at 1kHz into 8
:
325mW (typ)
n
Shutdown current: 0.7A (typ)
n
2.7V to 5.5V supply voltage range
Features
n
No bootstrap capacitors or snubber circuits are
necessary
n
Small Outline (SO) and DIP packaging
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Headphone Amplifier
n
Personal Computers
n
CD-ROM Players
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
DS012343-1
*Refer to the Application Information section for information concerning proper selection of the input and output coupling capacitors.
FIGURE 1. Typical Audio Amplifier Application Circuit
August 2000
LM4880
Boomer
Audio
Power
Amplifier
Series
Dual
250
mW
Audio
Power
Amplifier
with
Shutdown
Mode
2000 National Semiconductor Corporation
DS012343
www.national.com
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PDF描述 |
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| LM4880MWA | 0.325 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| LM4881MDA | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| LM4881N/NOPB | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| LM4882MMX/NOPB | 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4880MX | 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 |
| LM4880MX/NOPB | 功能描述:音频放大器 Dual 200 mW Audio Pwr 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 |
| LM4880N | 功能描述:IC AMP AUDIO PWR .325W STER 8DIP 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: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) |
| LM4880-SH2-R | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4880-SH2-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
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