Datasheet > LM4883

LM4883

更新时间： 2024-02-19 01:00:45

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	1239K
描述
Dual 2.1W Audio Amplifier Plus Stereo Headphone

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

LM4883 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：	unknown
风险等级：	5.83	商用集成电路类型：	AUDIO AMPLIFIER
JESD-30 代码：	R-PQCC-N24	湿度敏感等级：	1
功能数量：	2	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：	10 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：	QUAD
Base Number Matches：	1

LM4883 数据手册

November 2004

LM4883

Dual 2.1W Audio Amplifier Plus Stereo Headphone

Function

General Description

Key Specifications

The LM4883 is a dual bridge-connected audio power ampli-

fier which, when connected to a 5V supply, will deliver 2.1W

to a 4Ω load (Note 1) or 2.4W 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. A MUX control pin allows selec-

tion between the two stereo sets of amplifier inputs. The

MUX control can also be used to select two different closed-

loop responses.

P_Oat 1% THD+N

R_L= 3Ω

2.4W (typ)

2.1W (typ)

1.3W (typ)

0.01% (typ)

R_L= 4Ω

R_L= 8Ω

Single-ended mode THD+N

at 75mW into 32Ω (5V, 1kHz)

Shutdown current

Supply voltage range

PSRR at 217Hz

0.04µA (typ)

2.4V to 5.5V

85dB (typ)

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 LM4883SQ combines dual

bridge speaker amplifiers and stereo headphone amplifiers

on one chip.

Features

n Input mux control and two separate inputs per channel

n Stereo headphone amplifier mode

The LM4883SQ features an internally 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.

Note 1: An LM4883SQ that has been properly mounted to a circuit board

will deliver 2.1W into 4Ω. See the Application Information sections for further

information concerning the LM4883SQ.

n Improved “click and pop” suppression circuitry

n Thermal shutdown protection circuitry

n PCB area-saving SQ package

Applications

Note 2: An LM4883SQ that has been properly mounted to a circuit board

and forced-air cooled will deliver 2.4W into 3Ω.

n Multimedia monitors

n Portable and desktop computers

n Portable audio systems

Connection Diagrams

LM4883SQ

LM4883SQ Top Mark

200887C6

Top View

U = Fab Code

Z = Assembly Plant Code

XY = Date Code

TT = Die Traceability

200887A3

Top View

Order Number LM4883SQ

See NS Package Number SQA24B

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

DS200887

www.national.com

12 3 4 5 6 7...23

下载PDF

与LM4883相关器件

型号	品牌	描述	获取价格	数据表
LM4883SQ	NSC	Dual 2.1W Audio Amplifier Plus Stereo Headphone	获取价格
LM4883-SQ_BOM-001A	NSC	Demo Board	获取价格
LM4883SQX	NSC	IC 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24, LLP-24, Audio/Video Amplifier	获取价格
LM4884	NSC	2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and Shutdow	获取价格
LM4884MH	NSC	2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and Shutdow	获取价格
LM4884MH/NOPB	TI	2.6W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20, TSSOP-20	获取价格

产品中心

服务支持

精选活动

关于我们

帮助中心

LM4883

LM4883 技术参数

LM4883 数据手册

与LM4883相关器件

与LM4883相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM4883

LM4883 技术参数

LM4883 数据手册

与LM4883相关器件

与LM4883相关文章

您还可以找

您在本页遇到什么问题？