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LM4879MMX/NOPB

更新时间： 2024-11-04 21:08:43
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器光电二极管商用集成电路
页数 文件大小 规格书
25页 779K
描述
IC 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10, Audio/Video Amplifier

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中文翻译

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LM4879MMX/NOPB 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：TSSOP, TSSOP10,.19,20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.14标称带宽：20 kHz
商用集成电路类型：AUDIO AMPLIFIER谐波失真：1%
JESD-30 代码：S-PDSO-G10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：10最高工作温度：85 °C
最低工作温度：-40 °C标称输出功率：1.1 W
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP10,.19,20封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：2.6/5 V认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Audio/Video Amplifiers
最大压摆率：10 mA最大供电电压 (Vsup)：5 V
最小供电电压 (Vsup)：2.2 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：3 mmBase Number Matches：1

LM4879MMX/NOPB 数据手册

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October 2004  
LM4879  
1.1 Watt Audio Power Amplifier  
General Description  
Key Specifications  
The LM4879 is an audio power amplifier primarily designed  
for demanding applications in mobile phones and other por-  
table communication device applications. It is capable of  
delivering 1.1 watt of continuous average power to an 8Ω  
BTL load with less than 1% distortion (THD+N) from a 5VDC  
power supply.  
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PSRR: 5V, 3V 217Hz  
62dB (typ)  
1.1W (typ)  
Power Output at 5V & 1% THD+N  
Power Output at 3V & 1% THD+N  
Shutdown Current  
350mW (typ)  
0.1µA (typ)  
Boomer audio power amplifiers were designed specifically to  
provide high quality output power with a minimal amount of  
external components. The LM4879 does not require output  
coupling capacitors or bootstrap capacitors, and therefore is  
ideally suited for lower-power portable applications where  
minimal space and power consumption are primary require-  
ments.  
Features  
n No output coupling capacitors, snubber networks or  
bootstrap capacitors required  
n Unity gain stable  
n Ultra low current shutdown mode  
n Fast turn on: 80ms (typ), 110ms (max) with 1.0µF  
capacitor  
n BTL output can drive capacitive loads up to 100pF  
n Advanced pop & click circuitry eliminates noises during  
turn-on and turn-off transitions  
n 2.2V - 5.0V operation  
n Available in space-saving µSMD, LLP, and MSOP  
packages  
The LM4879 features a low-power consumption global shut-  
down mode, which is achieved by driving the shutdown pin  
with logic low. Additionally, the LM4879 features an internal  
thermal shutdown protection mechanism.  
The LM4879 contains advanced pop & click circuitry which  
eliminates noises which would otherwise occur during  
turn-on and turn-off transitions.  
The LM4879 is unity-gain stable and can be configured by  
external gain-setting resistors.  
Applications  
n Mobile Phones  
n PDAs  
n Portable electronic devices  
Typical Application  
20024301  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200243  
www.national.com  
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