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LM4844 Datasheet Stereo 1.2W Audio Sub-System

Manufacturer: National Semiconductor (now Texas Instruments)

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 8Ω load and a stereo OCL headphone amplifier delivering 33mW per channel into a 32Ω load.

It integrates the audio amplifiers, volume control, mixer, power management control, and National 3D enhancement all into a single package.

Overview

LM4844 Stereo 1.2W Audio Sub-System with 3D Enhancement www.DataSheet4U.com August 2007 LM4844 Stereo 1.

Key Features

  • Stereo speaker amplifier Stereo OCL headphone amplifier Independent Left, Right, and Mono volume controls National 3D enhancement I2C compatible interface Ultra low shutdown current Click and Pop Suppression circuit 10 distinct output modes.