Stereo Ac 97 Codec With Multi-codec Option

SigmaTels STAC9721 STAC9723 is a general-purpose 18-bit stereo, full duplex, Audio CODEC that conforms to the Analog component specification of AC'97 (Audio Codec 97 Component Specification Rev. 2.1). The STAC9721 STAC9723 incorporates SigmaTels proprietary Sigma-Delta technology to achieve a DAC SNR in excess of 95dB. The DACs ADCs and mixer are integrated with Analog I/Os, which include four Analog line-level stereo inputs, two Analog line-level mono inputs, two stereo outputs, and one mono output channel. Also included are SigmaTels 3D stereo enhancement SS3D , and an extra true line-level out for Headphones or speaker Amplifiers The STAC9721 STAC9723 may be used as a secondary codec, with the STAC9700/STAC9704/STAC9707/STAC9744/STAC9745 or a 4-channel STAC9708 as the primary, in multiple codec configurations conforming to the AC'97 Rev. 2.1 specification. This configuration CAN provide up to six-channel output, providing AC-3 playback for DVD applications. The STAC9721 STAC9723 communicates via the five-wire AC- Link Interface with any AC-Link capable controller or advanced core Logic chip-set. Packaged in an AC'97 compliant 48-pin TQFP, the STAC9721 STAC9723 CAN be placed on motherboards, daughter boards, add- on cards or AMR/MDC cards. By Unkown
STAC9721 's PackagesSTAC9721 's pdf datasheet
STAC9723 TQFP
STAC9721T TQFP
STAC9723T TQFP




STAC9721 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
STAC9721 Application circuits
STAC9721 circuits
This is one application circuit of STAC9721,If you need more circuits,please download STAC9721's pdf datasheet.


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