Datasheet > LM4890ITLX

LM4890ITLX

更新时间： 2024-01-01 00:38:30

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		放大器商用集成电路
页数	文件大小	规格书
30页	1621K
描述
Audio Amplifier, 1W, 1 Channel(s), 1 Func, PBGA9, MICRO, SMD-9

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LM4890ITLX 技术参数

生命周期：	Active	包装说明：	MICRO, SMD-9
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	5.57
标称带宽：	20 kHz	商用集成电路类型：	AUDIO AMPLIFIER
谐波失真：	2%	JESD-30 代码：	S-PBGA-B9
JESD-609代码：	e0	长度：	1.514 mm
信道数量：	1	功能数量：	1
端子数量：	9	最高工作温度：	85 °C
最低工作温度：	-40 °C	标称输出功率：	1 W
封装主体材料：	PLASTIC/EPOXY	封装代码：	VFBGA
封装形状：	SQUARE	封装形式：	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
座面最大高度：	0.675 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2.2 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	TIN LEAD
端子形式：	BALL	端子节距：	0.5 mm
端子位置：	BOTTOM	宽度：	1.514 mm
Base Number Matches：	1

LM4890ITLX 数据手册

July 2006

LM4890

1 Watt Audio Power Amplifier

General Description

Key Specifications

The LM4890 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 watt of continuous average power to an 8Ω BTL

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

power supply.

PSRR at 217Hz, V_DD= 5V (Fig. 1)

Power Output at 5.0V & 1% THD

Power Output at 3.3V & 1% THD

Shutdown Current

62dB(typ.)

1W(typ.)

400mW(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 LM4890 does not require output

coupling capacitors or bootstrap capacitors, and therefore is

ideally suited for mobile phone and other low voltage appli-

cations where minimal power consumption is a primary re-

quirement.

Features

n Available in space-saving packages: micro SMD, MSOP,

SOIC, and LLP

n Ultra low current shutdown mode

n BTL output can drive capacitive loads

n Improved pop & click circuitry eliminates noises during

turn-on and turn-off transitions

n 2.2 - 5.5V operation

n No output coupling capacitors, snubber networks or

bootstrap capacitors required

n Thermal shutdown protection

n Unity-gain stable

n External gain configuration capability

The LM4890 features a low-power consumption shutdown

mode, which is achieved by driving the shutdown pin with

logic low. Additionally, the LM4890 features an internal ther-

mal shutdown protection mechanism.

The LM4890 contains advanced pop & click circuitry which

eliminates noises which would otherwise occur during

turn-on and turn-off transitions.

The LM4890 is unity-gain stable and can be configured by

external gain-setting resistors.

Applications

n Mobile Phones

n PDAs

n Portable electronic devices

Connection Diagrams

8 Bump micro SMD

8 bump micro SMD Marking

20019270

Top View

X - Date Code

T - Die Traceability

G - Boomer Family

E - LM4890IBP

20019223

Top View

Order Number LM4890IBP, LM4890IBPX

See NS Package Number BPA08DDB

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

DS200192

www.national.com

12 3 4 5 6 7...30

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与LM4890ITLX相关器件

型号	品牌	描述	获取价格	数据表
LM4890ITLX/NOPB	TI	1W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9, MICRO, SMD-9	获取价格
LM4890ITPX	TI	IC,AUDIO AMPLIFIER,SINGLE,BGA,9PIN,PLASTIC	获取价格
LM4890LD	NSC	1 Watt Audio Power Amplifier	获取价格
LM4890LD/NOPB	TI	1W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10	获取价格
LM4890LDX	NSC	IC 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10, Audio/Video Amplifier	获取价格
LM4890LDX/NOPB	NSC	IC 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10, Audio/Video Amplifier	获取价格

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