LM49250 - Enhanced Emissions Suppression Stereo Class D Audio Sub-System

Product Overview

National Semiconductor

Part number	LM49250
Manufacturer	National Semiconductor
File Size	1.35 MB
Description	Enhanced Emissions Suppression Stereo Class D Audio Sub-System
Datasheet	LM49250 Datasheet
Additional preview pages of the LM49250 datasheet.

The LM49250 is a fully integrated audio subsystem designed for stereo cell phone applications.

a new circuit technology that utilizes a charge pump to generate a negative supply voltage. This allows the headphone outputs to be biased about ground, thereby eliminating the output-coupling capacitors. For improved noise immunity, the LM49250 features fully differential left, right and mono inputs. The three inputs can be mixed/multiplexed to any output combination of the loudspeaker, headphone or earpiece amplifiers. The left and right differential inputs can be used as separate single-ended.

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Other Datasheets by National Semiconductor

LM4925 - 2 Cell/ Single Ended Output 40mW Stereo Headphone Audio Amplifier
LM4920 - Stereo Headphone Amplifier
LM4921 - Low Voltage I2S 16-Bit Stereo DAC
LM4922 - 80mW Stereo Headphone Amplifier
LM4923 - 1.1 Watt Fully Differential Audio Power Amplifier
LM4926 - Ground-Referenced and Ultra Low Noise - Fixed Gain - 80mW Stereo Headphone Amplifier

Published: Apr 18, 2010 |