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STAC9723

ETC
Part Number STAC9723
Manufacturer ETC
Description (STAC9721 / STAC9723) Stereo AC 97 Codec
Published Nov 27, 2007
Detailed Description www.DataSheet4U.com DATA SHEET SigmaTel, Inc. Integrating Mixed-Signal Solutions STAC9721/23 Stereo AC'97 Codec With ...
Datasheet PDF File STAC9723 PDF File

STAC9723
STAC9723

Overview
www.
DataSheet4U.
com DATA SHEET SigmaTel, Inc.
Integrating Mixed-Signal Solutions STAC9721/23 Stereo AC'97 Codec With Multi-Codec Option GENERAL DESCRIPTION: SigmaTel’s 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.
2.
1).
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.
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 Enhancement • • • • • • EAPD – External Amplifier Power Down Control Multi-Codec option (Intel AC'97 rev 2.
1) Six analog line-level inputs 48-pin TQFP LINE-to-LINE SNR 102dB The STAC9723 is tested at +3.
3V ORDERING INFORMATION: PART NUMBER STAC9721T STAC9723T PACKAGE 48-pin TQFP 7mm x7mm x 1.
4mm 48-pin TQFP 7mmx7mm x 1.
4mm TEMPERATURE RANGE 0o C to +70o C 0o C to +7...


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