WM8731CLSEFL

Overview

The WM8731CLSEFL is a stereo audio CODEC manufactured by Cirrus Logic, housed in a 28-pin QFN package. It features two ADCs and two DACs with 24-bit resolution and supports sampling rates up to 96 kHz. The device operates on a supply voltage ranging from 1.8 V to 3.6 V. Key performance metrics include a signal-to-noise ratio of 90 dB for the ADC and 100 dB for the DAC. It integrates a headphone driver and supports serial interfaces including 2-Wire and 3-Wire modes.

Feature Summary

• Integrates high-performance stereo analog-to-digital and digital-to-analog converters with selectable digital filters.
• Includes an integrated headphone amplifier suitable for direct drive applications.
• Supports flexible digital audio interface configurations compatible with standard protocols.
• Features low-power design optimized for portable electronic devices.

Applications

• Portable MP3 players
• Personal Digital Assistants (PDAs)
• Compact Disc (CD) players

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels due to end-of-life status. Check for moisture sensitivity handling requirements during storage and assembly. Confirm pin compatibility with existing PCB layouts before integration into new designs.

Selection Notes

Evaluate power consumption constraints against the 1.8 V to 3.6 V operating range. Ensure the host controller supports the required 2-Wire or 3-Wire control interface. Verify that the QFN-28 package footprint matches the target board design specifications.

Part Context

This component belongs to the WM8731 series of audio CODECs designed for high-fidelity audio processing. It represents a specialized solution for integrating analog and digital audio functions within compact form factors, distinct from general-purpose data converters.

Replacement Considerations

WM8904CGEFL/V is listed as a potential replacement option. Verify functional equivalence regarding interface compatibility and power specifications before substitution.