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参数资料
| 型号： | LM4870MX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 1/11页 |
| 文件大小： | 283K |
| 代理商： | LM4870MX |
LM4870
1.1W Audio Power Amplifier with Shutdown Mode
General Description
The LM4870 is a bridge-connected audio power amplifier ca-
pable of delivering 1.1W of continuous average power to an
8
load with less than 0.5% THD+N over the audio spectrum
from a 5V power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal number of
external components. Since the LM4870 does not require
output coupling capacitors, bootstrap capacitors or snubber
networks, it is optimally suited for low-power portable sys-
tems.
The LM4870 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism. It also includes two head-
phone control inputs and a headphone sense output for ex-
ternal monitoring. The LM4870 is unity-gain stable and the
gain is set using external resistors.
Key Specifications
n
THD+N at 1W into 8
0.5% (max)
n
Output power into 8
at 1kHz at 10% THD+N 1.5W (typ)
n
Shutdown Current
0.6A (typ)
Features
n
No output coupling capacitors, bootstrap capacitors, or
snubber circuits are necessary
n
Small Outline (SOIC) power packaging
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Personal computers
n
Desktop computers
n
Low voltage audio system
Typical Application
Connection Diagram
Boomer is a registered trademark of National Semiconductor Corporation.
DS100094-1
FIGURE 1. Typical Audio Amplifier Application Circuit
Small Outline Package
DS100094-2
Top View
Order Number LM4870M
See NS Package Number M16A
August 2000
LM4870
1.1W
Audio
Power
Amplifier
with
Shutdown
Mode
2000 National Semiconductor Corporation
DS100094
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LM4871MDA | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC |
| LM4871MWA | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC |
| LM4871N/NOPB | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| LM4872IBPX/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| LM4872IBP/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4871 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871_03 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871LD | 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 |
| LM4871LD/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 |
| LM4871LDX | 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 |
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