Datasheet > LM4917MTX/NOPB

LM4917MTX/NOPB

更新时间： 2023-09-03 20:33:19

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
28页	3929K
描述
95mW 立体声模拟输入耳机放大器 \| PW \| 14 \| -40 to 85

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LM4917MTX/NOPB 数据手册

LM4917

www.ti.com

SNAS238G –AUGUST 2004–REVISED MAY 2013

LM4917 Boomer™ Audio Power Amplifier Series Ground-Referenced, 95mW Stereo

Headphone Amplifier

Check for Samples: LM4917

FEATURES

DESCRIPTION

The LM4917 is

a stereo, output capacitor-less

•

Ground Referenced Outputs

High PSRR

headphone amplifier capable of delivering 95mW of

continuous average power into a 16Ω load with less

than 1% THD+N from a single 3V power supply.

•

Available in Space-Saving TSSOP Package

Ultra Low Current Shutdown Mode

The LM4917 provides high quality audio reproduction

with minimal external components.

Improved Pop and Click Circuitry eliminates

Noises During Turn-On and Turn-Off

Transitions

ground

referenced output eliminates the output coupling

capacitors typically required by single-ended loads,

reducing component count, cost and board space

consumption. This makes the LM4917 ideal for

mobile phones and other portable equipment where

board space is at a premium. Eliminating the output

coupling capacitors also improves low frequency

response.

•

1.4 – 3.6V Operation

No Output Coupling Capacitors, Snubber

Networks, Bootstrap Capacitors

•

Shutdown Either Channel Independently

APPLICATIONS

The LM4917 operates from a single 1.4V to 3.6V

power supply, features low 0.02% THD+N and 70dB

PSRR. Independent right/left channel low-power

shutdown controls provide power saving flexibility for

mono/stereo applications. Superior click and pop

suppression eliminates audible transients during start

up and shutdown. Short circuit and thermal overload

protection protects the device during fault conditions.

•

Notebook PCs

Desktop PCs

Mobile Phone

PDAs

Portable Electronic Devices

KEY SPECIFICATIONS

•

Improved PSRR at 1kHz: 70dB (Typ)

Power Output at V_DD= 3V, R_L= 16Ω, THD ≦

1%: 95mW (Typ)

•

Shutdown Current: 0.01µA (Typ)

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.

Boomer is a trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

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.

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