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LME49600_0803 PDF预览

LME49600_0803

更新时间: 2024-11-06 03:51:43
品牌 Logo 应用领域
美国国家半导体 - NSC /
页数 文件大小 规格书
20页 432K
描述
High Performance, High Fidelity, High Current Audio Buffer

LME49600_0803 数据手册

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March 31, 2008  
LME49600ꢀ  
High Performance, High Fidelity, High Current Audio Buffer  
General Description  
Key Specifications  
The LME49600 is a high performance, low distortion high fi-  
delity 250mA audio buffer. The LME49600 is designed for a  
wide range of applications. It can be used inside the feedback  
loop of op amps.  
■ꢀLow THD+N  
(VOUT = 3VRMS, f = 1kHz, Figure 2)  
0.00003% (typ)  
2000V/μs (typ)  
250mA (typ)  
■ꢀSlew Rate  
■ꢀHigh Output Current  
■ꢀBandwidth  
The LME49600 offers a pin-selectable bandwidth: a low cur-  
rent, 110MHz bandwidth mode that consumes 7.3mA and a  
wide 180MHz bandwidth mode that consumes 13.2mA. In  
both modes the LME49600 has a nominal 2000V/μs slew  
rate. Bandwidth is easily adjusted by either leaving the BW  
pin unconnected or connecting a resistor between the BW pin  
and the VEE pin.  
BW pin floating  
110MHz (typ)  
180MHz (typ)  
BW connected to VEE  
■ꢀSupply Voltage Range  
±2.25V VS ±18V  
The LME49600 is fully protected through internal current limit  
and thermal shutdown.  
Features  
Pin-selectable bandwidth and quiescent current  
Pure fidelity. Pure performance  
Short circuit protection  
Thermal shutdown  
TO–263 surface-mount package  
Applications  
Headphone amplifier output drive stage  
Line drivers  
Low power audio amplifiers  
High-current operational amplifier output stage  
ATE Pin Driver Buffer  
Power supply regulator  
Functional Block Diagram  
30029805  
FIGURE 1. Simplified Circuit Diagram (Note: I1 and I2 are mirrored from I)  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2008 National Semiconductor Corporation  
300298  
www.national.com  

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