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LM4881MM/NOPB 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
音频放大器
封装:
VSSOP-8
描述:
音频放大器 Boomer Dual 200mW Headphone Amp
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LM4881MM/NOPB数据手册
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LM4881
www.ti.com
SNAS001D –SEPTEMBER 1997–REVISED MAY 2013
LM4881 Dual 200 mW Headphone Amplifier with
Shutdown Mode
Check for Samples: LM4881
1
FEATURES
DESCRIPTION
The LM4881 is a dual audio power amplifier capable
23
• VSSOP Surface Mount Packaging
of delivering 200mW of continuous average power
• Unity-gain Stable
into an 8Ω load with 0.1% THD+N from a 5V power
• External Gain Configuration Capability
supply.
• Thermal Shutdown Protection Circuitry
Boomer™ audio power amplifiers were designed
• No Bootstrap Capacitors, or Snubber Circuits
specifically to provide high quality output power with a
minimal amount of external components using
are Necessary
surface mount packaging. Since the LM4881 does
not require bootstrap capacitors or snubber networks,
APPLICATIONS
it is optimally suited for low-power portable systems.
• Headphone Amplifier
The LM4881 features an externally controlled, low
• Personal Computers
power consumption shutdown mode which is virtually
• Microphone Preamplifier
clickless and popless, as well as an internal thermal
shutdown protection mechanism.
KEY SPECIFICATIONS
The unity-gain stable LM4881 can be configured by
• THD+N at 1kHz at 125mW Continuous Average
external gain-setting resistors.
Output Power into 8Ω 0.1% (max)
• THD+N at 1kHz at 75mW Continuous
0.02% (typ)
• Output Power at 10% THD+N at 1kHz into 8Ω
300 mW (typ)
• Shutdown Current 0.7µA (typ)
• Supply Voltage Range 2.7V to 5.5 V
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.
2Boomer is a trademark of Texas Instruments.
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 1997–2013, 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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