National Semiconductor Audio 97

Lab 7: Interfacing FPGA Spartan-6 with AC’97 Codec

http://www.dejazzer.com/ee478/labs/lab7_audio_ac97.pdf

The Atlys board includes a National Semiconductor LM4550 AC‘97 audio codec (IC3) with four 1/8” audio jacks for line-out (J5), headphone-out (J7), line-in (J4), and microphone-in (J6). Audio data at up to 18 bits and 48KHz sampling is supported, and the audio in (record) and audio out (playback) sampling rates can be different.

Using AC'97 Codecs in Non- National Semiconductor

http://application-notes.digchip.com/006/6-8862.pdf

The AC’97 specification was developed by Intel(Note 1) in 1996 to provide an audio standard for the IBM compatible personal computer market. It was very successful, with over a half dozen vendors making AC’97 compatible coder/de-coders (codecs). As vendors and customers started produc-ing integrated circuits and systems, the specifications went

LM4545 AC '97 Codec with Stereo Headphone Amplifier and ...

https://media.digikey.com/pdf/Data%20Sheets/National%20Semiconductor%20PDFs/LM4545.pdf

AC ’97 Codec with Stereo Headphone Amplifier and National 3D Sound General Description The LM4545 is an audio codec for PC systems which per-forms the analog-intensive function of the Analog Codec ’97 ers, the LM4545 provides 90dB of dynamic range. The LM4545 was designed specifically to provide a high

LM4546BVH/NOPB Datasheets | Interface - CODECs Audio, AC ...

https://www.apogeeweb.net/productdetail/national-semiconductor-lm4546bvh-nopb-trlskgkk

LM4546BVH/NOPB Datasheets | Interface - CODECs Audio, AC '97 Interface 18 b Serial 48-LQFP (7x7) By apogeeweb, LM4546BVH/NOPB, LM4546BVH/NOPB Datasheet,LM4546BVH/NOPB PDF,National Semiconductor

LM4549VH National Semiconductor, LM4549VH Datasheet

https://elcodis.com/parts/539115/LM4549VH.html

Request National Semiconductor LM4549VH: IC CODEC AC '97 REV 2.1 48LQFP online from Elcodis, view and download LM4549VH pdf datasheet, Interface - CODECs specifications.

AC'97 Windows 9x to Windows 10 Driver | Device Drivers

https://oemdrivers.com/sound-ac97

AC'97 (short for Audio Codec '97; also MC'97, short for Modem Codec '97) is Intel Corporation's Audio Codec standard developed by the Intel Architecture Labs in 1997, and used mainly in motherboards, modems, and sound cards. Audio components integrated into chipsets consist of two components: an AC'97 digital controller (DC97), which is built into the I/O …

National Semiconductor Corporation -- Company History

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