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LM4905LDX PDF预览

LM4905LDX

更新时间: 2024-01-10 13:49:30
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器商用集成电路
页数 文件大小 规格书
17页 675K
描述
IC 1.07 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10, Audio/Video Amplifier

LM4905LDX 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:HVSON, SOLCC8,.11,20Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.69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-XDSO-N10JESD-609代码:e0
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:1.07 W
封装主体材料:UNSPECIFIED封装代码:HVSON
封装等效代码:SOLCC8,.11,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):235
电源:2.5/5 V认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Audio/Video Amplifiers
最大压摆率:10 mA最大供电电压 (Vsup):5.5 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:Tin/Lead (Sn85Pb15)
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:30
宽度:3 mmBase Number Matches:1

LM4905LDX 数据手册

 浏览型号LM4905LDX的Datasheet PDF文件第2页浏览型号LM4905LDX的Datasheet PDF文件第3页浏览型号LM4905LDX的Datasheet PDF文件第4页浏览型号LM4905LDX的Datasheet PDF文件第5页浏览型号LM4905LDX的Datasheet PDF文件第6页浏览型号LM4905LDX的Datasheet PDF文件第7页 
July 2003  
LM4905  
1 Watt Audio Power Amplifier  
General Description  
Key Specifications  
The LM4905 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 watt of continuous average power to an 8BTL  
load with less than 1% distortion (THD+N) from a 5VDC  
power supply.  
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Improved PSRR at 217Hz & 1KHz  
Power Output at 5.0V, 1% THD, 8Ω  
Power Output at 3.0V, 1% THD, 8Ω  
Shutdown Current  
62dB  
1.07W (typ)  
390mW (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 LM4905 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.  
Features  
n Available in space-saving LLP package  
n Ultra low current shutdown mode  
n BTL output can drive capacitive loads  
n Improved pop & click circuitry eliminates noise during  
turn-on and turn-off transitions  
The LM4905 features a low-power consumption shutdown  
mode, which is achieved by driving the shutdown pin with  
logic low. Additionally, the LM4905 features an internal ther-  
mal shutdown protection mechanism.  
n 2.2 - 5.5V operation  
n No output coupling capacitors, snubber networks or  
bootstrap capacitors required  
n Unity-gain stable  
n External gain configuration capability  
The LM4905 contains advanced pop & click circuitry which  
eliminates noise which would otherwise occur during turn-on  
and turn-off transitions.  
Applications  
n Mobile Phones  
n PDAs  
The LM4905 is unity-gain stable and can be configured by  
external gain-setting resistors.  
n Portable electronic devices  
Typical Application  
200508D3  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2003 National Semiconductor Corporation  
DS200508  
www.national.com  

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