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LM4900LD PDF预览

LM4900LD

更新时间: 2024-01-02 15:39:25
品牌 Logo 应用领域
美国国家半导体 - NSC 消费电路商用集成电路音频放大器视频放大器功率放大器光电二极管
页数 文件大小 规格书
19页 774K
描述
265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode

LM4900LD 技术参数

是否Rohs认证:符合生命周期:Obsolete
包装说明:SOP,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.75Is Samacsys:N
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:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1信道数量:1
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
标称输出功率:0.675 W封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
最大压摆率:6 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):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:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

LM4900LD 数据手册

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September 2001  
LM4900  
265mW at 3.3V Supply Audio Power Amplifier with  
Shutdown Mode  
General Description  
The LM4900 is a bridged audio power amplifier capable of  
delivering 265mW of continuous average power into an 8  
load with 1% THD+N from a 3.3V power supply.  
Features  
n MSOP, LLP, and SOP packaging  
n No output coupling capacitors, bootstrap capacitors, or  
snubber circuits are necessary  
Boomer® audio power amplifiers were designed specifically  
to provide high quality output power from a low supply volt-  
age while requiring a minimal amount of external compo-  
nents. Since the LM4900 does not require output coupling  
capacitors, bootstrap capacitors or snubber networks, it is  
optimally suited for low-power portable applications.  
n Thermal shutdown protection circuitry  
n Unity-gain stable  
n External gain configuration capability  
n Latest generation ’click and pop’ suppression circuitry  
Applications  
n Cellular phones  
n PDA’s  
The LM4900 features an externally controlled, low power  
consumption shutdown mode, and thermal shutdown protec-  
tion.  
n Any portable audio application  
The closed loop response of the unity-gain stable LM4900  
can be configured by external gain-setting resistors.  
Key Specifications  
j
j
j
THD+N at 1kHz for 265mW continuous  
average output power into 8,  
VDD = 3.3V  
1.0% (max)  
THD+N at 1kHz for 675mW continuous  
average output power into 8,  
VDD = 5V  
1.0% (max)  
0.1µA (typ)  
Shutdown current  
Typical Application  
DS200064-1  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2001 National Semiconductor Corporation  
DS200064  
www.national.com  

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