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LM4918LQ PDF预览

LM4918LQ

更新时间: 2024-02-07 01:13:49
品牌 Logo 应用领域
美国国家半导体 - NSC 音频放大器
页数 文件大小 规格书
17页 643K
描述
Stereo Audio Amp with AGC Control

LM4918LQ 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:QCCN, LCC32,.2X.24,20Reach Compliance Code:compliant
风险等级:5.84商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:R-PQCC-N32JESD-609代码:e3
湿度敏感等级:3功能数量:2
端子数量:32最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:QCCN封装等效代码:LCC32,.2X.24,20
封装形状:RECTANGULAR封装形式:CHIP CARRIER
电源:5 V认证状态:Not Qualified
子类别:Audio/Video Amplifiers最大压摆率:25 mA
表面贴装:YES温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
Base Number Matches:1

LM4918LQ 数据手册

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February 2004  
LM4918  
Stereo Audio Amp with AGC Control  
General Description  
Key Specifications  
The LM4918 is a monolithic integrated circuit that provides a  
automatic gain control (AGC), and stereo bridged audio  
power amplifiers capable of producing 1W into 8with less  
than 1.0% THD.  
j
j
j
THD+N at 1kHz, 1W, 8Ω  
0.3% (typ)  
18mA (typ)  
1µA (typ)  
Total quiescent power supply current  
Total shutdown power supply current  
Boomer® audio integrated circuits were designed specifically  
to provide high quality audio while requiring a minimum  
amount of external components. The LM4918 incorporates a  
AGC and stereo bridged audio power amplifiers making it  
optimally suited for multimedia monitors, portable radios,  
desktop and portable computer applications.  
Features  
n 0.75dB per step/32step AGC Control Interface  
n Automatic Gain Control Circuitry  
n Stereo Bridged power amplifiers  
n “Click and pop” suppression circuitry  
n Thermal shutdown protection circuitry  
n Selectable Auto Detect Std-by mode and Logic control  
The LM4918 features an externally controlled, low-power  
consumption shutdown mode, and a power amplifier mute  
for maximum system flexibility and performance.  
Applications  
n Portable Computers  
n Desktop Computers  
n Multimedia monitors  
Typical Application  
20091301  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200913  
www.national.com  

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