LM4879ITPX

更新时间： 2024-11-04 13:09:23

品牌	Logo	应用领域
美国国家半导体 - NSC		放大器功率放大器
页数	文件大小	规格书
25页	789K
描述
IC,AUDIO AMPLIFIER,SINGLE,BGA,8PIN,PLASTIC

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中文翻译

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技术参数
数据手册

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LM4879ITPX 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	FBGA, BGA8,3X3,20	Reach Compliance Code：	not_compliant
风险等级：	5.81	Is Samacsys：	N
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	S-PBGA-B8
JESD-609代码：	e0	湿度敏感等级：	1
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	FBGA
封装等效代码：	BGA8,3X3,20	封装形状：	SQUARE
封装形式：	GRID ARRAY, FINE PITCH	电源：	2.6/5 V
认证状态：	Not Qualified	子类别：	Audio/Video Amplifiers
最大压摆率：	10 mA	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn63Pb37)
端子形式：	BALL	端子节距：	0.5 mm
端子位置：	BOTTOM	Base Number Matches：	1

LM4879ITPX 数据手册

October 2004

LM4879

1.1 Watt Audio Power Amplifier

General Description

Key Specifications

The LM4879 is an audio power amplifier primarily designed

for demanding applications in mobile phones and other por-

table communication device applications. It is capable of

delivering 1.1 watt of continuous average power to an 8Ω

BTL load with less than 1% distortion (THD+N) from a 5V_DC

power supply.

PSRR: 5V, 3V 217Hz

62dB (typ)

1.1W (typ)

Power Output at 5V & 1% THD+N

Power Output at 3V & 1% THD+N

Shutdown Current

350mW (typ)

0.1µA (typ)

Boomer audio power amplifiers were designed specifically to

provide high quality output power with a minimal amount of

external components. The LM4879 does not require output

coupling capacitors or bootstrap capacitors, and therefore is

ideally suited for lower-power portable applications where

minimal space and power consumption are primary require-

ments.

Features

n No output coupling capacitors, snubber networks or

bootstrap capacitors required

n Unity gain stable

n Ultra low current shutdown mode

n Fast turn on: 80ms (typ), 110ms (max) with 1.0µF

capacitor

n BTL output can drive capacitive loads up to 100pF

n Advanced pop & click circuitry eliminates noises during

turn-on and turn-off transitions

n 2.2V - 5.0V operation

n Available in space-saving µSMD, LLP, and MSOP

packages

The LM4879 features a low-power consumption global shut-

down mode, which is achieved by driving the shutdown pin

with logic low. Additionally, the LM4879 features an internal

thermal shutdown protection mechanism.

The LM4879 contains advanced pop & click circuitry which

eliminates noises which would otherwise occur during

turn-on and turn-off transitions.

The LM4879 is unity-gain stable and can be configured by

external gain-setting resistors.

Applications

n Mobile Phones

n PDAs

n Portable electronic devices

Typical Application

20024301

FIGURE 1. Typical Audio Amplifier Application Circuit

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

DS200243

www.national.com

12 3 4 5 6 7...25

中文翻译

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与LM4879ITPX相关器件

型号	品牌	获取价格	描述	数据表
LM4879ITPX/NOPB	TI	获取价格	1.1W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8, GREEN, DSBGA-8
LM4879MM	NSC	获取价格	1.1 Watt Audio Power Amplifier
LM4879MM/NOPB	TI	获取价格	1.1W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10
LM4879MMX/NOPB	NSC	获取价格	IC 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10, Audio/Video Amplifier
LM4879MMX/NOPB	TI	获取价格	1.1 Watt Audio Power Amplifier
LM4879SD	NSC	获取价格	1.1 Watt Audio Power Amplifier
LM4880	UTC	获取价格	DUAL 250m W AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE
LM4880	NSC	获取价格	Dual 250 mW Audio Power Amplifier with Shutdown Mode
LM4880	TI	获取价格	Dual 250 mW Audio Power Amplifier with Shutdown Mode
LM4880_07	UTC	获取价格	DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE

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