The STAC9220/9221/9223 are high fidelity, 8-channel audio codecs compatible with Intel’s High Definition (HD) Audio Interface (formerly known as “Azalia”) . The STAC9220/9221/9223 codecs provide stereo 24-bit resolution with sample rates up to 192kHz. SPDIF I/O provides connectivity to consumer electronic equipment. The STAC9221 codec incorporates SigmaTel's proprietary SD technology to achieve an estimated DAC SNR in excess of 105dB. The STAC9220/9223 codecs incorporate SigmaTel's proprietary SD technology to achieve an estimated DAC SNR in excess of 95dB. The STAC9223 has all of the features of the STAC9220 plus ADAT® Optical “Lightpipe.” The STAC9220/9221/ 9223 codecs provide high quality, HD Audio capability to notebook and media centric desktop PC applications.
The Sigmatel AC97 audio driver is for Windows Vista, Windows XP or Windows 2000. Technically, it is the rather long winded: Sigmatel C-Major STAC 9750 AC97 WDM Audio Driver. Whatever way you want to label it, the driver package installs version 5.1 of the driver onto your system and can be used as an update to an earlier driver or as part of a new installation.
The driver can be used for the following Sigmatel models:
STAC 9200, STAC 9204, STAC 9205, STAC 9220, STAC 9221, STAC 9223, STAC 9227, STAC 9228, STAC 9229, STAC 9230, STAC 9254, STAC 9255, STAC 9271, STAC 9272, STAC 9273, STAC 9274.