Datasheet > LM4856ITL

LM4856ITL

更新时间： 2024-02-13 02:35:52

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
23页	1317K
描述
Integrated Audio Amplifier System

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技术参数
数据手册

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LM4856ITL 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	QCCN, LCC24,.16X.2,20	Reach Compliance Code：	compliant
风险等级：	5.84	商用集成电路类型：	AUDIO AMPLIFIER
JESD-30 代码：	R-PQCC-N24	JESD-609代码：	e3
湿度敏感等级：	3	功能数量：	1
端子数量：	24	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：	QCCN	封装等效代码：	LCC24,.16X.2,20
封装形状：	RECTANGULAR	封装形式：	CHIP CARRIER
电源：	3/5 V	认证状态：	Not Qualified
子类别：	Audio/Video Amplifiers	最大压摆率：	12 mA
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD

LM4856ITL 数据手册

May 2004

LM4856

Integrated Audio Amplifier System

General Description

Key Specifications

n THD+N at 1kHz, 1.1W into 8Ω BTL

n THD+N at 1kHz, 60mW into 32Ω SE

n Single Supply Operation

1.0% (typ)

0.5% (typ)

2.6 to 5.0V

The LM4856 is an audio power amplifier system capable of

delivering 1.1W (typ) of continuous average power into a

mono 8Ω bridged-tied load (BTL) with 1% THD+N and

60mW (typ) per channel of continuous average power into

stereo 32Ω single-ended (SE) loads with 0.5% THD+N, us-

ing a 5V power supply.

Features

n 1.1W (typ) output power with 8Ω mono BTL load

n 60mW (typ) output power with stereo 32Ω SE loads

n I²C programmable 32 step digital volume control

n Eight distinct output modes

The LM4856 features a 32 step digital volume control and

eight distinct output modes. The digital volume control and

output modes are programmed through a two-wire I²C com-

patible control interface, that allows flexibility in routing and

mixing audio channels.

n micro-SMD and LLP surface mount packaging

n "Click and Pop" suppression circuitry

n Thermal shutdown protection

The LM4856 is designed for cellular phone, PDA, and other

portable handheld applications. It delivers high quality output

power from a surface-mount package and requires only

eight external components.

n Low shutdown current (0.1uA, typ)

The industry leading micro SMD package only utilizes 2mm

x 2.3mm of PCB space, making the LM4856 the most space

efficient audio sub system available today.

Applications

n Moblie Phones

n PDAs

Typical Application

20060732

FIGURE 1. Typical Audio Amplifier Application Circuit

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

DS200607

www.national.com

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