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DRV632PW 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
音频放大器
封装:
TSSOP-14
描述:
TEXAS INSTRUMENTS DRV632PW 差分线形驱动器, 可调增益, 2 驱动器
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DRV632PW数据手册
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DRV632
www.ti.com
SLOS681A –JANUARY 2011–REVISED JULY 2013
DirectPath™, 2-VRMS Audio Line Driver With Adjustable Gain
Check for Samples: DRV632
1
FEATURES
DESCRIPTION
The DRV632 is a 2-V
RMS
pop-free stereo line driver
23
• Stereo DirectPath™ Audio Line Driver
designed to allow the removal of the output dc-
– 2 Vrms Into 10 kΩ With 3.3-V Supply
blocking capacitors for reduced component count and
• Low THD+N < 0.01% at 2 Vrms Into 10 kΩ
cost. The device is ideal for single-supply electronics
where size and cost are critical design parameters.
• High SNR, >90 dB
• 600-Ω Output Load Compliant
Designed using TI’s patented DirectPath™
technology, The DRV632 is capable of driving 2 V
RMS
• Differential Input and Single-Ended Output
into a 10-kΩ load with 3.3-V supply voltage. The
• Adjustable Gain by External Gain-Setting
device has differential inputs and uses external gain-
Resistors
setting resistors to support a gain range of ±1 V/V to
• Low DC Offset, <1 mV
±10 V/V, and gain can be configured individually for
each channel. Line outputs have ±8-kV IEC ESD
• Ground-Referenced Outputs Eliminate DC-
protection, requiring just a simple resistor-capacitor
Blocking Capacitors
ESD protection circuit. The DRV632 has built-in
– Reduce Board Area
active-mute control for pop-free audio on/off control.
– Reduce Component Cost
The DRV632 has an external undervoltage detector
that mutes the output when the power supply is
– Improve THD+N Performance
removed, ensuring a pop-free shutdown.
– No Degradation of Low-Frequency
Using the DRV632 in audio products can reduce
Response Due to Output Capacitors
component count considerably compared to
• Short-Circuit Protection
traditional methods of generating a 2-V
RMS
output.
• Click- and Pop-Reduction Circuitry
The DRV632 does not require a power supply greater
than 3.3 V to generate its 5.6-V
pp
output, nor does it
• External Undervoltage Mute
require a split-rail power supply. The DRV632
• Active Mute Control for Pop-Free Audio On/Off
integrates its own charge pump to generate a
Control
negative supply rail that provides a clean, pop-free
• Space-Saving TSSOP Package
ground-biased 2-V
RMS
output.
The DRV632 is available in a 14-pin TSSOP.
APPLICATIONS
• Set-Top Boxes
• 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.
2DirectPath, FilterPro are trademarks of Texas Instruments.
3Blu-ray Disc is a trademark of Blu-ray Disc Association.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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