SigmaTel STAC9721
STAC9721/23 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. The STAC9721/23 incorporates SigmaTel’s 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.| Part No. | STAC9721 |
|---|---|
| Datasheet | STAC9721 Download |
| Manufacturer |  SigmaTel |
| Description | Stereo AC 97 Codec |
| Buy | Stock & Price |
GENERAL DESCRIPTION
: SigmaTel’s 2.1). Also included are SigmaTel’s 3D stereo enhancement (SS3D), and an extra true line-level out for headphones or speaker amplifiers. The STAC9721/23 may be used as a secondary codec, with the STAC9700/04/07/44/45 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 STAC9721/23 communicates via the five-wire ACLink interface with any AC-Link capable controller or advanced core logic chip-set. Packaged in an AC'97 compliant 48-pin TQFP, the STAC9721/23 can be placed on motherboards, daughter boards, addon cards or AMR/MDC cards.FEATURES
:● High performance Σ∆ technology
● Energy saving power down modes
● 18-bit full duplex stereo ADC, DACs
● AC-Link protocol compliance
● 3.3V Multiple power supply options
● Pin compatible with the STAC9700/44/45
● SigmaTel Surround (SS3D) Stereo E...
