STAC9752AXTAED1X

Codecs Overview

The STAC9752AXTAED1X is a general-purpose, full-duplex audio CODEC conforming to the AC'97 Rev 2.3 specification. It features 20-bit stereo ADCs and DACs with independent sample rates for each converter. The device supports a 5-wire AC-Link protocol and includes a 20-bit SPDIF output. Key analog performance metrics include an Analog LINE_OUT SNR of 94dB, Digital DAC SNR of 92dB, and Digital ADC SNR of 85dB. Full-scale Total Harmonic Distortion is specified at 0.002%, with crosstalk between input channels at -70dB and spurious tone rejection at 100dB. It operates on a +5V analog power supply option.

Codecs Feature Summary

• Integrates Universal Jacks technology with internal sensing capabilities for headphone, line-out, and microphone inputs.
• Includes a full stereo microphone pre-amplifier with selectable boost levels ranging from 0dB to 30dB.
• Features a crystal elimination circuit and general-purpose I/Os to reduce external component count.
• Provides integrated headphone drive capability delivering up to 50mW per channel without requiring an external amplifier.

Codecs Applications

• Motherboard integration
• Daughter boards
• PCI, AMR, CNR, MDC, or ACR expansion cards

Codecs Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and lead-free status. Confirm availability as this component may be subject to discontinuation notices. Ensure compatibility with the host controller's AC'97 interface requirements before procurement.

Codecs Selection Notes

Select this model when a +5V analog power supply is required, distinguishing it from the pin-compatible STAC9753A which utilizes a +3.3V supply. Verify that the system design accommodates the 48-pin LQFP package dimensions. Ensure the application requires AC'97 compliance rather than High Definition Audio (HDA) interfaces.

Codecs Part Context

This component belongs to the Tempo Semiconductor STAC9752/9753 series of AC'97 codecs. These devices are designed for high-performance audio processing in PC systems. They utilize proprietary SD technology to achieve high signal-to-noise ratios and support multiple CODEC configurations for multi-channel audio playback.

Codecs Replacement Considerations

The STAC9753A is a pin-compatible alternative within the same family. Selection depends primarily on the required analog power supply voltage (+3.3V for STAC9753A versus +5V for STAC9752A). No other functional differences are documented for direct substitution.