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DRV632

更新时间： 2024-09-27 09:55:39
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
18页 440K
描述
DirectPath?, 2-VRMS Audio Line Driver With Adjustable Gain

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DRV632 数据手册

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DRV632  
www.ti.com  
SLOS681 –JANUARY 2011  
DirectPath™, 2-VRMS Audio Line Driver With Adjustable Gain  
Check for Samples: DRV632  
1
FEATURES  
DESCRIPTION  
23  
•
Stereo DirectPath™ Audio Line Driver  
The DRV632 is a 2-VRMS pop-free stereo line driver  
designed to allow the removal of the output  
dc-blocking capacitors for reduced component count  
and cost. The device is ideal for single-supply  
electronics where size and cost are critical design  
parameters.  
–
2 Vrms Into 10 kΩ With 3.3-V Supply  
•
Low THD+N < 0.01% at 2 Vrms Into 10 kΩ  
High SNR, >90 dB  
•
•
•
•
600-Ω Output Load Compliant  
Differential Input and Single-Ended Output  
Designed  
using  
TI’s  
patented  
DirectPath™  
technology, The DRV632 is capable of driving 2 VRMS  
into a 10-kΩ load with 3.3-V supply voltage. The  
device has differential inputs and uses external  
gain-setting resistors to support a gain range of ±1  
V/V to ±10 V/V, and gain can be configured  
individually for each channel. Line outputs have  
±8-kV IEC ESD protection, requiring just a simple  
resistor-capacitor ESD protection circuit. The  
DRV632 has built-in active-mute control for pop-free  
audio on/off control. The DRV632 has an external  
undervoltage detector that mutes the output when the  
Adjustable Gain by External Gain-Setting  
Resistors  
•
•
Low DC Offset, <1 mV  
Ground-Referenced Outputs Eliminate  
DC-Blocking Capacitors  
–
–
–
–
Reduce Board Area  
Reduce Component Cost  
Improve THD+N Performance  
No Degradation of Low-Frequency  
Response Due to Output Capacitors  
power supply is removed, ensuring  
shutdown.  
a pop-free  
•
•
•
•
Short-Circuit Protection  
Using the DRV632 in audio products can reduce  
component count considerably compared to  
traditional methods of generating a 2-VRMS output.  
The DRV632 does not require a power supply greater  
than 3.3 V to generate its 5.6-Vpp output, nor does it  
Click- and Pop-Reduction Circuitry  
External Undervoltage Mute  
Active Mute Control for Pop-Free Audio On/Off  
Control  
require  
a split-rail power supply. The DRV632  
•
Space-Saving TSSOP Package  
integrates its own charge pump to generate a  
negative supply rail that provides a clean, pop-free  
ground-biased 2-VRMS output.  
APPLICATIONS  
•
•
•
•
•
•
Set-Top Boxes  
The DRV632 is available in a 14-pin TSSOP.  
Blu-ray Disc™, DVD Players  
LCD and PDP TV  
Mini/Micro Combo Systems  
Sound Cards  
Laptops  
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.  
2
3
DirectPath, FilterPro are trademarks of Texas Instruments.  
Blu-ray Disc is a trademark of Blu-ray Disc Association.  
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 © 2011, Texas Instruments Incorporated  
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DRV632 替代型号

型号 品牌 替代类型 描述 数据表
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