LM4549 - AC97 Codec

Product Overview

National Semiconductor

Datasheet Details

Part number	LM4549
Manufacturer	National Semiconductor
File Size	324.10 KB
Description	AC97 Codec
Datasheet	LM4549 Datasheet
Additional preview pages of the LM4549 datasheet.

Product details

Description

The LM4549 is an audio codec for PC systems which is fully PC98 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 codec features a second Line Output known as True Line Level Out that is identical to Line Out but with independent volume control. The LM4549 also features 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 1Hz to convert any rate be.

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Other Datasheets by National Semiconductor

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Published: Mar 22, 2005 |