LM4844 datasheet(1/21 Pages) NSC

номер детали	LM4844

подробное описание детали	Stereo 1.2W Audio Sub-system with 3D Enhancement

PDF	21 Pages

Scroll/Zoom	100%

производитель	NSC [National Semiconductor (TI)]

домашняя страница	http://www.national.com

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LM4844

Stereo 1.2W Audio Sub-system with 3D Enhancement

General Description

The LM4844 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 495mW per

channel into an 8

Ω load and a stereo OCL headphone

amplifier delivering 33mW per channel into a 32

Ω load.

It integrates the audio amplifiers, volume control, mixer,

power management control, and National 3D enhancement

all into a single package. In addition, the LM4844 routes and

mixes the stereo and mono inputs into 10 distinct output

modes. The LM4844 is controlled through an I

2C compatible

interface.

Boomer audio power amplifiers are designed specifically to

provide high quality output power with a minimal amount of

external components.

The LM4844 is available in a very small 2.5mm x 2.9mm

30-bump micro SMD (TL) package.

Key Specifications

j POUT, Stereo BTL, 8

Ω, 3.3V,

1% THD+N

495mW (typ)

j POUT HP, 32

Ω, 3.3V,

1% THD+N

33mW (typ)

j Shutdown Current, 3.3V

0.1µA (typ)

Features

n

Stereo speaker amplifier

n

Stereo OCL headphone amplifier

n

Independent Left, Right, and Mono volume controls

n

National 3D enhancement

n

I

2C compatible interface

n

Ultra low shutdown current

n

Click and Pop Suppression circuit

n

10 distinct output modes

Applications

n

Cell Phones

n

PDAs

n

Portable Gaming Devices

n

Internet Appliances

n

Portable DVD, CD, AAC, and MP3 Players

Block Diagram

Boomer® is a registered trademark of National Semiconductor Corporation.

20153531

FIGURE 1. Audio Sub-system Block Diagram

June 2005

DS201535

www.national.com

Аналогичный номер детали - LM4844

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	LM4844	633Kb / 26P	Stereo 1.2W Audio Sub-System with 3D Enhancement
National Semiconductor ...	LM4844	633Kb / 26P	Stereo 1.2W Audio Sub-System with 3D Enhancement

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Аналогичное описание - LM4844

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	LM4857	1Mb / 38P	Stereo 1.2W Audio Sub-system with 3D Enhancement
National Semiconductor ...	LM4859	1Mb / 29P	Stereo 1.2W Audio Sub-system with 3D Enhancement
New Japan Radio	NJW1160	620Kb / 26P	AUDIO PROCESSOR with SOUND ENHANCEMENT and SRS 3D STEREO
New Japan Radio	NJW1161	554Kb / 25P	AUDIO PROCESSOR with SRS 3D STEREO
National Semiconductor ...	LM4844	633Kb / 26P	Stereo 1.2W Audio Sub-System with 3D Enhancement
	LM4857	1Mb / 37P	Stereo 1.2W Audio Sub-system with 3D Enhancement
	LM4859	1Mb / 29P	Stereo 1.2W Audio Sub-system with 3D Enhancement
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Texas Instruments	LM4857	3Mb / 39P	Stereo 1.2W Audio Sub-system
Texas Instruments	LM4859	2Mb / 30P	Stereo 1.2W Audio Sub-system

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LM4844 датащи(PDF) 1 Page - National Semiconductor (TI)

LM4844 датащи(HTML) 1 Page - National Semiconductor (TI)

Аналогичный номер детали - LM4844

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