LM4550 - AC97 Multi-Channel Audio Codec

Product Overview

National Semiconductor

Datasheet Details

Part number	LM4550
Manufacturer	National Semiconductor
File Size	507.06 KB
Description	AC97 Multi-Channel Audio Codec
Datasheet	LM4550 Datasheet
Additional preview pages of the LM4550 datasheet.

Product details

Description

The LM4550 is an audio codec for PC systems which is fully PC99 compliant and performs the analog intensive functions of the AC97 Rev2.1 architecture.

Features

full duplex stereo A/D’s and D/A’s and an analog mixer with 4 stereo and 3 mono inputs, each of which has separate gain, attenuation and mute control. The LM4550 provides a stereo headphone amplifier with an independent gain control and also supports National’s 3D Sound stereo enhancement and variable sample rate conversion. The sample rate for the A/D and D/A can be programmed separately with a resolution of 1 Hz to convert any rate between 4 kHz.
48 kHz. The LM4550 features the ability.

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Published: Mar 22, 2005 |