WM8581AGEFT/V

Overview

The WM8581AGEFT/V is a multi-channel audio CODEC with an integrated S/PDIF transceiver, manufactured by Cirrus Logic (formerly Wolfson Microelectronics). It features one stereo 24-bit sigma-delta ADC and four stereo 24-bit sigma-delta DACs. The device supports digital audio input/output word lengths from 16 to 32 bits and sampling rates from 8 kHz to 192 kHz. It includes two independent audio data interfaces supporting I2S, Left Justified, Right Justified, and DSP formats. The S/PDIF transceiver is IEC-60958-3 compatible with frame rates from 32 k/s to 96 k/s. Supply voltages are 2.7 V to 5.5 V for analogue and 2.7 V to 3.6 V for digital. The package is a 48-lead TQFP.

Feature Summary

• Integrated S/PDIF transceiver compliant with IEC-60958-3 standard
• Four independent stereo DACs with dedicated digital volume control
• Two programmable audio data interfaces operating in master or slave mode
• Dual PLLs for flexible system clock generation

Applications

• Digital TV systems
• DVD players and receivers
• Surround sound AV processors and Hi-Fi systems
• Automotive audio equipment

Procurement Notes

Verify the specific ordering suffix 'AGEFT/V' against current manufacturer documentation to confirm lead-free status and tape-and-reel packaging configuration. Confirm availability as this component may be subject to end-of-life status or supply chain constraints. Ensure compatibility with required moisture sensitivity levels and soldering temperature profiles during assembly.

Selection Notes

Select this component when a complete multi-channel solution with integrated S/PDIF is required. Verify that the 48-lead TQFP package fits the PCB layout constraints. Ensure the system design accommodates the separate analogue and digital supply voltage requirements. Check if the independent sample rate capability between ADC and DAC meets the application's timing needs.

Part Context

This part belongs to the WM8581 series of multichannel CODECs. The 'AGEFT/V' suffix indicates a specific variant within the family, typically denoting the lead-free (Pb-free) version packaged in a 48-lead TQFP. Other variants may differ in packaging quantity or environmental compliance but share the same core functionality.

Replacement Considerations

Direct replacements must match the 44-pin or 48-pin TQFP footprint and pinout. Verify functional equivalence regarding the number of DAC/ADC channels and S/PDIF integration. Cross-reference with other Cirrus Logic audio CODECs if available.