STAC9750XXTAEC1XR

Codecs Overview

The STAC9750XXTAEC1XR is a full-duplex stereo audio CODEC conforming to the AC'97 Rev 2.2 specification, manufactured by Tempo Semiconductor, Inc. It features 18-bit ADCs and 20-bit DACs utilizing proprietary Sigma-Delta technology. The device supports independent sample rates for ADCs and DACs via hardware sample rate converters (SRCs). Key specifications include an analog LINE_OUT SNR of 90 dB, digital DAC SNR of 89 dB, and digital ADC SNR of 85 dB. It incorporates a crystal elimination circuit, SPDIF output capability, and a headphone amplifier. The component operates with +5 V analog power supply options and communicates via the five-wire AC-Link protocol.

Codecs Feature Summary

• Full duplex stereo audio conversion with integrated mixer and analog I/Os
• Hardware sample rate converters allowing independent ADC and DAC operation
• Integrated headphone drive capability eliminating external amplifiers
• Support for SPDIF digital output and General Purpose I/O

Codecs Applications

• Motherboard audio implementations
• PCI, AMR, CNR, and ACR expansion cards
• Daughter board audio solutions
• Secondary CODEC configurations for multi-channel AC-3 playback

Codecs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pin compatibility and power supply requirements. Ensure the component matches the required AC'97 Rev 2.2 compliance level. Confirm that the package type aligns with the design constraints for the target application platform.

Codecs Selection Notes

Select this component for applications requiring AC'97 Rev 2.2 compliance with integrated headphone driving capabilities. Consider the STAC9751 variant if a +3.3 V analog power supply is preferred over the +5 V option provided by the STAC9750. Evaluate the need for secondary CODEC integration if six-channel audio output is required for DVD applications.

Codecs Part Context

This component belongs to the Value-Line Two-Channel AC’97 CODECs family from Tempo Semiconductor. It is designed as a general-purpose audio solution for PC systems. The part is pin-compatible with other models in the series such as the STAC9700, STAC9721, STAC9744, STAC9756, STAC9766, and STAC9752, facilitating design flexibility across different product generations.

Codecs Replacement Considerations

Public confirmed substitute part numbers are not available in the verified source material.