Datasheet > LM4863_06

LM4863_06

更新时间： 2024-11-20 04:18:31

品牌	Logo	应用领域
美国国家半导体 - NSC		音频放大器
页数	文件大小	规格书
21页	1158K
描述
Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

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中文翻译

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LM4863_06 数据手册

October 2006

LM4863

Dual 2.2W Audio Amplifier Plus Stereo Headphone

Function

General Description

Key Specifications

n P_Oat 1% THD+N

The LM4863 is a dual bridge-connected audio power ampli-

fier which, when connected to a 5V supply, will deliver 2.2W

to a 4Ω load (Note 1) or 2.5W to a 3Ω load (Note 2) with less

than 1.0% THD+N. In addition, the headphone input pin

allows the amplifiers to operate in single-ended mode when

driving stereo headphones.

LM4863LQ, 3Ω, 4Ω loads

LM4863MTE, 3Ω, 4Ω loads

LM4863MTE, 8Ω load

LM4863, 8Ω

2.5W(typ), 2.2W(typ)

1.1W(typ)

n Single-ended mode THD+N at 75mW into

32Ω

n Shutdown current

Boomer audio power amplifiers were designed specifically to

provide high quality output power from a surface mount

package while requiring few external components. To sim-

plify audio system design, the LM4863 combines dual bridge

speaker amplifiers and stereo headphone amplifiers on one

chip.

0.5%(max)

0.7µA(typ)

2.0V to 5.5V

n Supply voltage range

Features

n Stereo headphone amplifier mode

n “Click and pop” suppression circuitry

n Unity-gain stable

The LM4863 features an externally controlled, low-power

consumption shutdown mode, a stereo headphone amplifier

mode, and thermal shutdown protection. It also utilizes cir-

cuitry to reduce “clicks and pops” during device turn-on.

n Thermal shutdown protection circuitry

Note 1: An LM4863MTE or LM4863LQ that has been properly mounted to

a circuit board will deliver 2.2W into 4Ω. The other package options for the

LM4863 will deliver 1.1W into 8Ω. See the Application Information sections

for further information concerning the LM4863MTE and LM4863LQ.

n SOIC, TSSOP, exposed-DAP TSSOP, and LLP

packages

* Not recommended for new designs. Contact NSC Audio

Marketing.

Note 2: An LM4863MTE or LM4863LQ that has been properly mounted to a

circuit board and forced-air cooled will deliver 2.5W into 3Ω.

Applications

n Multimedia monitors

n Portable and desktop computers

n Portable televisions

Typical Application

01288101

Note: Pin out shown for SO package. Refer to the Connection Diagrams for the pinout of the TSSOP, Exposed-DAP TSSOP, and Exposed-DAP LLP

packages.

Boomer^®is a registered trademark of National Semiconductor Corporation.

DS012881

www.national.com

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与LM4863_06相关器件

型号	品牌	获取价格	描述	数据表
LM4863_15	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863_16	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863-D16-T	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863G-D16-T	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863G-N20-R	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863G-S18-R	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863L-D16-T	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863L-N20-R	UTC	获取价格	DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
LM4863L-N20-T	UTC	获取价格	Audio Amplifier, 3.2W, 2 Channel(s), 1 Func, CMOS, PDSO20, LEAD FREE, HTSSOP-20
LM4863LQ	TI	获取价格	Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

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