Datasheet > LM4811

LM4811

更新时间： 2024-01-22 09:08:22

品牌	Logo	应用领域
友顺 - UTC		放大器
页数	文件大小	规格书
9页	204K
描述
DUAL 105mW HEADPHONE AMPLIFIER WITH DIGITAL VOLUME CONTROL AND SHUTDOWN MODE

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技术参数
数据手册

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LM4811 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	SON, SOLCC10,.11,20	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.55	商用集成电路类型：	VOLUME CONTROL CIRCUIT
JESD-30 代码：	R-PDSO-N10	湿度敏感等级：	1
功能数量：	2	端子数量：	10
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：	SON
封装等效代码：	SOLCC10,.11,20	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
电源：	2.6/5 V	认证状态：	Not Qualified
子类别：	Audio/Video Amplifiers	最大压摆率：	3 mA
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

LM4811 数据手册

UNISONIC TECHNOLOGIES CO., LTD

LM4811

Preliminary

CMOS IC

DUAL 105mW HEADPHONE

AMPLIFIER WITH DIGITAL

VOLUME CONTROL AND

SHUTDOWN MODE

DESCRIPTION

The UTC LM4811 is a dual audio power amplifier with digital

volume control and shutdown mode function. It is featured in

unity-gain stability. The digital volume control sets the amplifier’s

gain from +12dB to -33dB in 16 discrete steps using a two-wire

interface. The shutdown mode is externally controlled, active-high

and micropower consumption. An internal thermal shutdown

protection circuit is contained in the device.

Operating on a 5V power supply, it can drive 16Ω load at

105mW per channel of continuous average power with 0.1%

(THD+N).

This device is mainly used to provide customers with higher

quality output power but less required external components. The

UTC LM4811 reduces the use of bootstrap capacitors or snubber

networks that make making it ideal for low-power portable systems

applications.

The UTC LM4811 is generally applied in cellular phones, MP3,

CD, DVD players, PDA’s and other portable electronics.

FEATURES

* Digital volume control range: +12dB~ -33dB

* "Click and Pop" suppression circuitry

* Saving the use of bootstrap capacitors

* Low shutdown current

ORDERING INFORMATION

Ordering Number

Lead Free

Package

Packing

Tape Reel

Halogen Free

LM4811G-SM2-R

LM4811L-SM2-R

MSOP-10

www.unisonic.com.tw

1 of 9

QW-R502-560.a

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