Product Summary
The STAC9766 (Revision CC1 and beyond) is general purpose 20-bit, full duplex, audio CODECs conforming to the analog component specification of AC 97 (Audio CODEC 97 Component Specification Rev. 2.3). The STAC9766/9767incorporates IDT s proprietary SD technology The AC 97 CODEC is designed to achieve a DAC SNR in excess of 103dB. The STAC9766/9767 is a standard 2-channel stereo CODEC. With IDT s headphone drive capability, headphones can be driven with without an external amplifier. The STAC9766/9767 communicates via the five-wire AC-Link to any digital component of AC 97, providing flexibility in the audio system design. The STAC9766/9767provides variable sample rate Digital-to-Analog (DA) and Analog-to-Digital (AD) conversion, mixing and analog processing.
Parametrics
STAC9766 absolute maximum ratings:(1)Analog maximum supply voltage:6 Volts; (2)Digital maximum supply voltage:5.5 Volts; (3)VREFOUT output current:5 mA; (4)Voltage on any pin relative to ground:Vss - 0.3 V to Vdd + 0.3 V; (5)Operating temperature:0°C to +70°C; (6)Storage temperature:-55 °C to +125 °C; (7)Soldering temperature:260°C for 10 seconds.
Features
STAC9766 features: (1)High Performance SD Technology; (2)AC 97 Rev 2.3 Complaint; (3)20-bit Full Duplex Stereo ADC & DACs; (4)Independent Sample Rates for ADC & DACs; (5)5-Wire AC-Link Protocol Compliance; (6)20-bit SPDIF Output ; (7)Full Stereo Microphone Pre-Amp; (8)Internal Jack Sensing on Headphone & Line_Out; (9)Internal Microphone Input Sensing; (10)Digital PC Beep Option; (11)Extended AC 97 2.3 Paging Registers; (12)Digital-ready Status; (13)General Purpose I/O; (14)Crystal Elimination Circuit; (15)Headphone Drive Capability (50 mW); (16)0dB, 10dB, 20dB and 30dB Microphone Boost ; (17)Capability ; (18)+3.3 V (STAC9767) and +5 V (STAC9766) Analog ; (19)Power Supply Options; (20)Pin Compatible with STAC9700/21/56; (21)100% Compatible with STAC9750/52; (22)IDT Surround (SS3D) Stereo Enhancement; (23)Energy Saving Dynamic Power Modes; (24)Multi-CODEC Option (Intel AC 97 rev 2.3); (25)Six Analog Line-level Inputs; (26)103dB SNR LINE-LINE.