Datasheet > LM4883SQX

LM4883SQX

更新时间： 2024-02-05 00:32:52

品牌	Logo	应用领域
美国国家半导体 - NSC		放大器商用集成电路
页数	文件大小	规格书
23页	1227K
描述
IC 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24, LLP-24, Audio/Video Amplifier

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LM4883SQX 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	HVQCCN, LCC24,.16X.2,20	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.91	标称带宽：	20 kHz
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	R-XQCC-N24
JESD-609代码：	e0	长度：	5 mm
湿度敏感等级：	1	信道数量：	2
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
标称输出功率：	0.4 W	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC24,.16X.2,20
封装形状：	RECTANGULAR	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Audio/Video Amplifiers	最大压摆率：	10 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.4 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn85Pb15)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4 mm
Base Number Matches：	1

LM4883SQX 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

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