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LM4992SDX PDF预览

LM4992SDX

更新时间: 2024-01-16 15:41:50
品牌 Logo 应用领域
美国国家半导体 - NSC 音频放大器手机
页数 文件大小 规格书
16页 573K
描述
IC 1.07 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO14, LLP-14, Audio/Video Amplifier

LM4992SDX 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:SON, SOLCC14,.12,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.51商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:R-PDSO-N14JESD-609代码:e3
湿度敏感等级:1功能数量:2
端子数量:14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:SON封装等效代码:SOLCC14,.12,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260电源:2.6/5 V
认证状态:Not Qualified子类别:Audio/Video Amplifiers
最大压摆率:18 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:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

LM4992SDX 数据手册

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February 2004  
LM4992  
420mW Stereo Cell Phone Audio Amplifier  
General Description  
Key Specifications  
The LM4992 is a stereo audio power amplifier primarily  
designed for demanding applications in mobile phones and  
other portable communication device applications. It is ca-  
pable of delivering 1 watt, per channel, of continuous aver-  
age power to an 8BTL load with less than 1% distortion  
(THD+N) from a 5VDC power supply.  
j
Improved PSRR at 217Hz & 1KHz  
Stereo Output Power at 5.0V,  
1% THD, 8Ω  
64dB (1KHz)  
1.07W (typ)  
j
j
j
Stereo Output Power at 3.3V,  
1% THD, 8Ω  
420mW (typ)  
0.2µA (typ)  
Boomer audio power amplifiers were designed specifically to  
provide high quality output power with a minimal amount of  
external components. The LM4992 does not require output  
coupling capacitors or bootstrap capacitors, and therefore is  
ideally suited for mobile phone and other low voltage appli-  
cations where minimal power consumption is a primary re-  
quirement.  
Shutdown Current, Vdd = 3.3V  
Features  
n Available in space-saving LLP package  
n Ultra low current shutdown mode  
n BTL output can drive capacitive loads  
The LM4992 features independent shutdown control for  
each channel and a low-power consumption shutdown  
mode, which is achieved by driving both shutdown pins with  
logic low. Additionally, the LM4992 features an internal ther-  
mal shutdown protection mechanism.  
n Improved pop & click circuitry eliminates noise during  
turn-on and turn-off transitions  
n 2.2 - 5.5V operation  
n No output coupling capacitors, snubber networks or  
bootstrap capacitors required  
n Unity-gain stable  
The LM4992 contains advanced pop & click circuitry which  
eliminates noise which would otherwise occur during turn-on  
and turn-off transitions.  
n External gain configuration capability  
The LM4992 is unity-gain stable and can be configured by  
external gain-setting resistors.  
Applications  
n Mobile Phones  
n PDAs  
n Portable electronic devices  
Connection Diagram  
SDA14A  
200761E6  
Top View  
Order Number LM4992SD  
See NS Package Number SDA14A  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200761  
www.national.com  

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