WM8581AGEFT/RV

Overview

The WM8581AGEFT/RV is a multi-channel audio CODEC with an integrated S/PDIF transceiver, manufactured by Cirrus Logic. 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 range from 2.7 V to 5.5 V for analog supplies and 2.7 V to 3.6 V for digital supplies. It is housed in a 48-lead TQFP package.

Feature Summary

• Integrated S/PDIF transceiver compliant with IEC-60958-3 standards
• Four independent stereo DACs with dedicated digital volume control
• Dual programmable audio data interfaces operating in master or slave modes
• Flexible control via 2-wire/3-wire serial interface or hardware pins

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 RV indicates tape and reel packaging configuration. Confirm the AGEFT variant meets the -40°C to +85°C temperature range requirements. Ensure compatibility with the 48-lead TQFP footprint during PCB layout. Check RoHS compliance status against current regulatory standards before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring multiple discrete DAC channels within a single package. The integrated S/PDIF receiver simplifies digital audio input routing. Verify that the required sampling rates up to 192 kHz align with system clock capabilities. Ensure supply voltage constraints fit within the specified 2.7 V to 5.5 V analog range.

Part Context

This part belongs to the WM8581 series of multichannel CODECs produced by Wolfson Microelectronics, now part of Cirrus Logic. The series is designed for high-performance audio processing applications. The WM8581AGEFT/RV specifically denotes the lead-free, tape and reel version of the standard WM8581 device.

Replacement Considerations

Direct pin-to-pin replacements are not explicitly listed in the provided documentation. Evaluate other Cirrus Logic multichannel CODECs for functional equivalence. Verify electrical characteristics and package dimensions match the existing design constraints.