STAC9700
STAC9700 is Stereo AC97 Codec manufactured by SigmaTel.
DESCRIPTION
:
Sigma Tel’s STAC9700 is a general-purpose 18-bit stereo, full duplex, audio codec that is built around the analog ponent specification of AC'97. The STAC9700 incorporates Sigma Tel’s proprietary Sigma-Delta technology to achieve a DAC SNR in excess of 90d B and line through SNR of greater than 95d B. The DACs, ADCs, and mixer are integrated with analog I/Os, which include three analog line-level stereo inputs, two analog line-level mono inputs, one stereo outputs, and one mono output channel. Also included is Sigma Tel’s 3D stereo enhancement (SS3D) for increased speaker separation when using typical low-cost PC speakers. The STAC9700 is a primary codec, and can be used with the STAC9721/23/44/45 or a 4-channel STAC9708 as the secondary, in multiple codec configurations. This configuration can provide up to six-channel output, delivering AC-3 playback for DVD applications. The STAC9700 municates via the five-wire AC-Link interface with any AC-Link capable controller or advanced core logic chip-set. Packaged in an AC'97 pliant 48-pin TQFP, the STAC9700 can be placed on motherboards, daughter boards, add-on cards or docking stations.
FEATURES
:
- High performance Σ ∆ technology
- Energy saving power down modes
- 18-bit full duplex stereo ADC, DACs
- AC-Link protocol pliance
- Low-noise differential CDROM input
- Primary capable in 2.1 system
- Pin patible with the STAC9704/21
- Sigma Tel Surround (SS3D) Stereo Enhancement
- Five analog line-level inputs
- 48-pin TQFP
- SNR > 90 d B through Mixer and DAC
- +3.3V and +5V operation
08/06/99
Sigma Tel, Inc.
Data Sheet
ORDERING INFORMATION:
Part Number STAC9700T
PACKAGE 48-pin TQFP 7mm x 7mm x 1.4mm
TEMPERATURE RANGE
0o C to +70o C
SUPPLY RANGE DVdd = 3.3V or 5V, AVdd = 5V
Sigma Tel reserves the right to change specifications without notice.
08/06/99
Sigma Tel, Inc.
Data Sheet
TABLE OF CONTENTS:
ORDERING INFORMATION: 2
1. PIN/SIGNAL DESCRIPTIONS...
