STAC9758 Datasheet | IDT

OVERVIEW High performance, 6-channel, AC’97 2.3 CODECs with high Signal-to-Noise ratio and low distortion. STAC9758/9759 DESCRIPTION IDT's STAC9758/9759 are general purpose 20-bit, full duplex, 6-Channel audio CODECs conforming to the analog ponent specification of AC '97 (Audio Codec 97 ponent Specification Rev. 2.3). The STAC9758/9759 incorporates IDT's proprietary Σ∆ technology to achieve a DAC SNR in excess of 90d B. With IDT’s headphone drive capability, headphones can be driven without an external amplifier. The STAC9758/9759 municates via the five AC-Link to any digital ponent of AC '97, providing flexibility in the audio system design. Packaged in an AC '97 pliant 48-pin TQFP, the STAC9758/9759 can be placed on the motherboard, daughter boards, PCI, AMR, CNR, MDC or ACR cards. Supported ADC and DAC audio sample rates include 96k Hz, 48k Hz, 44.1k Hz, 32k Hz, 22.05k Hz, 16k Hz, 11.025k Hz, and 8 k Hz; additional rates are supported in the STAC9758/9759 soft audio drivers. All ADCs and DACs operate at 20-bit resolution. SPDIF_OUT supported sample rates include 96k Hz, 48k Hz, 44.1k Hz and 32k Hz. SPDIF_IN supports 48k Hz and 44.1k Hz. The STAC9758/9759 includes internal jack sensing using proprietary IDT current and impedance-sensing techniques. The impedance load on any of the inputs or outputs can be detected. The STAC9758/9759 also supports Universal Jacks TM functionality for jack interchangeability. The GPIOs on the STAC9758/9759 remain available for advanced configurations. The STAC9758/9759 can support up to 5 GPIOs. The STAC9758/9759 is designed primarily to support 6-channel audio. Additionally, the STAC9758/9759 provides for a stereo enhancement feature , IDT Surround 3D (SS3D). The STAC9758/9759 also supports the ADAT ® Optical “Litepipe” Interface, which provides an 8 channel output for professional and consumer audio applications. The STAC9758/9759 can be Sound Blaster® and Windows Sound System ® patible when used with IDT’s WDM driver for Windows 98/2K/ME/XP or...