LM4908_15 Datasheet, PDF (1/22 Pages) Texas Instruments – 10kV ESD Rated, Dual 120 mW Headphone Amplifier

LM4908, LM4908LQBD
www.ti.com
SNAS218C – NOVEMBER 2003 – REVISED MAY 2013
LM4908
10kV ESD Rated, Dual 120 mW Headphone
Amplifier
Check for Samples: LM4908, LM4908LQBD
FEATURES
1
•2 Up to 10kV ESD Protection on All Pins
• VSSOP, SOIC, and WSON Surface Mount
Packaging
• Switch On/Off Click Suppression
• Excellent Power Supply Ripple Rejection
• Unity-Gain Stable
• Minimum External Components
APPLICATIONS
• Headphone Amplifier
• Personal Computers
• Portable Electronic Devices
DESCRIPTION
The LM4908 is a dual audio power amplifier capable
of delivering 120mW per channel of continuous
average power into a 16Ω load with 0.1% (THD+N)
from a 5V power supply.
Boomer audio power amplifiers were designed
specifically to provide high quality output power with a
minimal amount of external components using
surface mount packaging. Since the LM4908 does
not require bootstrap capacitors or snubber networks,
it is optimally suited for low-power portable systems.
The unity-gain stable LM4908 can be configured by
external gain-setting resistors.
KEY SPECIFICATIONS
• THD+N at 1kHz at 120mW Continuous
Average Output Power into 16Ω: 0.1 % (typ)
• THD+N at 1kHz at 75mW Continuous Average
Output Power into 32Ω: 0.1 % (typ)
• Output Power at 0.1% THD+N at 1kHz into
32Ω 75 mW (typ)
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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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 © 2003–2013, Texas Instruments Incorporated