LM4920 - Stereo Headphone Amplifier

Product Overview

National Semiconductor

Datasheet Details

Part number	LM4920
Manufacturer	National Semiconductor
File Size	1.23 MB
Description	Stereo Headphone Amplifier
Datasheet	LM4920 Datasheet
Additional preview pages of the LM4920 datasheet.

Product details

Description

The LM4920 is a ground referenced, fixed-gain audio power amplifier capable of delivering 80mW of continuous average power into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply.

Features

a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby eliminating output-coupling capacitors typically used with normal single-ended loads. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4920 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobi.

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Other Datasheets by National Semiconductor

LM4921 - Low Voltage I2S 16-Bit Stereo DAC
LM4922 - 80mW Stereo Headphone Amplifier
LM4923 - 1.1 Watt Fully Differential Audio Power Amplifier
LM4925 - 2 Cell/ Single Ended Output 40mW Stereo Headphone Audio Amplifier
LM49250 - Enhanced Emissions Suppression Stereo Class D Audio Sub-System
LM4926 - Ground-Referenced and Ultra Low Noise - Fixed Gain - 80mW Stereo Headphone Amplifier

Published: Nov 24, 2006 |