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LME49600 PDF预览

LME49600

更新时间： 2024-11-07 11:14:11
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德州仪器 - TI /
页数 文件大小 规格书
21页 544K
描述
单通道、110MHz、高保真、高电流耳机缓冲器

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中文翻译

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LME49600 数据手册

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LME49600  
www.ti.com  
SNAS422E –JANUARY 2008–REVISED APRIL 2013  
LME49600 High-Performance, High-Fidelity, High-Current Headphone Buffer  
Check for Samples: LME49600  
1
FEATURES  
DESCRIPTION  
The LME49600 is a high performance, low distortion  
high fidelity 250mA audio buffer. The LME49600 is  
designed for a wide range of applications. It can be  
used inside the feedback loop of op amps.  
2
•
Pin-Selectable Bandwidth and Quiescent  
Current  
•
•
•
•
Pure Fidelity, Pure Performance  
Short Circuit Protection  
The LME49600 offers a pin-selectable bandwidth: a  
low current, 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.  
Thermal Shutdown  
TO–263 Surface-Mount Package  
APPLICATIONS  
•
•
•
•
Headphone Amplifier Output Drive Stage  
Line Drivers  
Low Power Audio Amplifiers  
The LME49600 is fully protected through internal  
current limit and thermal shutdown.  
High-Current Operational Amplifier Output  
Stage  
KEY SPECIFICATIONS  
•
•
ATE Pin Driver Buffer  
•
Low THD+N (VOUT = 3VRMS, f = 1kHz,  
Figure 26): 0.00003% (typ)  
Power Supply Regulator  
•
•
•
Slew Rate: 2000V/μs (typ)  
High Output Current: 250mA (typ)  
Bandwidth  
–
–
BW Pin Floating: 110MHz (typ)  
BW Connected to VEE: 180MHz (typ)  
•
Supply Voltage Range: ±2.25V ≤ VS ≤ ±18V  
Typical Application Diagram  
R
FB  
+
V
0.1mF  
0.1mF  
10 mF  
R
+
IN  
-
V
V
CC  
CC  
IN  
OUT  
LME49710  
LME49600  
10 mF  
+
V
V
EE  
R
L
EE  
V
+
IN  
BW  
-
V
Figure 1. High Performance, High Fidelity LME49600 Audio Buffer Application  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2013, Texas Instruments Incorporated  
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