LM4934WL

更新时间： 2024-02-10 08:32:48

品牌	Logo	应用领域
美国国家半导体 - NSC		消费电路商用集成电路音频放大器视频放大器
页数	文件大小	规格书
39页	1283K
描述
3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs

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技术参数
数据手册

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LM4934WL 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	FBGA, BGA42,6X7,20	Reach Compliance Code：	unknown
风险等级：	5.92	商用集成电路类型：	AUDIO AMPLIFIER
JESD-30 代码：	R-PBGA-B42	JESD-609代码：	e0
端子数量：	42	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：	FBGA	封装等效代码：	BGA42,6X7,20
封装形状：	RECTANGULAR	封装形式：	GRID ARRAY, FINE PITCH
电源：	3/3.3,3/5 V	认证状态：	Not Qualified
子类别：	Audio/Video Amplifiers	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	BALL	端子节距：	0.5 mm
端子位置：	BOTTOM	Base Number Matches：	1

LM4934WL 数据手册

November 2005

LM4934

3D Audio Sub-System with Stereo Speaker, OCL/SE

Stereo Headphone, Earpiece and Mono Line Level

Outputs

General Description

Key Specifications

The LM4934 is an integrated audio sub-system designed for

stereo cell phone applications. Operating on a 3.3V supply, it

combines a stereo speaker amplifier delivering 520mW per

channel into an 8Ω load, a stereo headphone amplifier de-

livering 36mW per channel into a 32Ω load, a mono earpiece

amplifier delivering 55mW into a 32Ω load, and a line output

for an external powered handsfree speaker. It integrates the

audio amplifiers, volume control, mixer, power management

control, and National 3D enhancement all into a single pack-

age. In addition, the LM4934 routes and mixes the stereo

and mono inputs into multiple distinct output modes. The

LM4934 features an I2S serial interface for full range audio

and an I2C/SPI compatible interface for control.

P_OUT, Stereo BTL, 8Ω, 3.3V,

1% THD+N

520mW (typ)

36mW (typ)

P_OUTHP, 32Ω, 3.3V, 1% THD+N

P_OUTMono Earpiece, 32Ω, 3.3V,

1% THD+N

55mW (typ)

0.6µA (typ)

95dB (typ)

Shutdown current

DAC SNR

Features

n 18-bit stereo DAC

n Multiple distinct output modes

n Stereo speaker amplifier

n Stereo headphone amplifier

n Mono earpiece amplifier

Boomer audio power amplifiers are designed specifically to

provide high quality output power with a minimal amount of

external components.

n Mono Line Output for external handsfree carkit

n Independent Left, Right, headphone and Mono speaker

volume controls

n National 3D enhancement with programmable effect

level

n I²C/SPI (selectable) compatible interface

n Ultra low shutdown current

n Click and Pop Suppression circuit

Applications

n Cell Phones

n PDAs

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

DS201669

www.national.com

12 3 4 5 6 7...39

中文翻译

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与LM4934WL相关器件

型号	品牌	获取价格	描述	数据表
LM4934WLX	TI	获取价格	IC,AUDIO AMPLIFIER,DUAL,BGA,42PIN,PLASTIC
LM4935	NSC	获取价格	Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Ampl
LM49350	NSC	获取价格	High Performance Audio Codec Sub-System with a Ground-Referenced Stereo Headphone Amplifie
LM49350RL	NSC	获取价格	High Performance Audio Codec Sub-System with a Ground-Referenced Stereo Headphone Amplifie
LM49350RL/NOPB	NSC	获取价格	IC SPECIALTY CONSUMER CIRCUIT, PBGA36, 3.5 X 3.5 MM, ROHS COMPLIANT, MICRO SMDXT-36, Consu
LM49350RLX	NSC	获取价格	High Performance Audio Codec Sub-System with a Ground-Referenced Stereo Headphone Amplifie
LM49352	TI	获取价格	Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece D
LM49352_14	TI	获取价格	Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers Earpiece Dr
LM49352RL	TI	获取价格	Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece D
LM49352RL/NOPB	TI	获取价格	Mono Class D Audio Codec Subsytem w/ Gnd Referenced Headphone Amps, Earpiece Driver, &

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