STAC9704 Datasheet | SigmaTel

SCRIPTION: Sigma Tel’s STAC9704/07 is a general purpose 18-bit, full duplex, audio codec that conforms to the analog ponent specification of AC’97 (Audio Codec ’97 ponent Specification rev. 1.03). The STAC9704/07 incorporates Sigma Tel’s proprietary Sigma-Delta technology to achieve signal quality in excess of 95d B SNR. The DACs, ADCs, and mixers are integrated with analog I/Os, which include four analog line-level stereo inputs, two analog line-level mono inputs, and 3 output channels. Also included are Sigma Tel’s 3D stereo enhancement (SS3D) and an extra true line-level out for headphones or speaker amplifiers. The STAC9704/07 municates via the five wire AC Link to any digital ponent of AC’97 providing flexibility in the audio system design. Packaged in a small AC’97 pliant 48-pin TQFP, the STAC9704/07 can be placed on the motherboard, daughter boards, add-on cards, PCMCIA cards, or outside the main chassis such as in a speaker. The 9707 is identical to the 9704 except that the 9707 is tested at AVdd = DVdd = 3.3V. Features : - High performance Σ ∆ technology - 18-bit full duplex stereo A/D, D/A - AC-link protocol pliance - Single power source from 5V to 3.3V - AC'97 pliant mixer - Sigma Tel Surround (SS3D) Stereo Enhancement - Energy saving power down modes - 48k sample/second rate - Six analog line-level inputs - 48-pin TQFP - SNR > 95 d B through Mixer and DAC - STAC9707 is the 3.3 volt version 10/02/98 ORDERING INFORMATION: PART NUMBER STAC9704T STAC9707T PACKAGE 48-pin TQFP 7mm x 7mm x 1.4mm 48-pin TQFP 7mm x 7mm x 1.4mm TEMPERATURE RANGE 0o C to +70o C 0o C to +70o C SUPPLY RANGE DVdd = 3.3V - 5V, AVdd = 5V DVdd = 3.3V AVdd =...