LM49270 - Filterless 2.2W Stereo Class D Audio Subsystem

Product Overview

National Semiconductor

Datasheet Details

Part number	LM49270
Manufacturer	National Semiconductor
File Size	2.51 MB
Description	Filterless 2.2W Stereo Class D Audio Subsystem
Datasheet	LM49270 Datasheet
Additional preview pages of the LM49270 datasheet.

Product details

Description

The LM49270 is a fully integrated audio subsystem designed for stereo multimedia applications.

The LM49270 combines a 2.2W stereo Class D amplifier with a 155mW stereo headphone amplifier, volume control, headphone sense, and National’s unique 3D sound enhancement into a single device.

Features

National’s Output Capacitor-less (OCL) architecture that eliminates the output coupling capacitors required by traditional headphone amplifiers. The IC features a headphone sense input (HPS) that automatically detects the presence of a headphone and configures the device accordingly. The LM49270 can automatically switch from OCL headphone output to a line driver output. If the VOC pin is pulled to GND, the VOC amplifier is disabled and the VOC pin is internally set to GND. This feature allows th.

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Other Datasheets by National Semiconductor

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Published: Jun 1, 2007 |