WM8742GEDS/V

Overview

The WM8742GEDS/V is a stereo digital-to-analogue converter (DAC) from Cirrus Logic, housed in a 28-lead SSOP package. It supports PCM data word lengths from 16 to 32 bits and sampling rates up to 192 kHz, alongside DSD bit-stream formats. The device operates on separate analogue (4.5V–5.5V) and digital (3.15V–3.6V) supplies. Key electrical specifications include a typical SNR of 123dB (A-weighted stereo at 48kHz), -100dB THD, and 130dB channel separation. It features advanced multi-bit sigma-delta architecture with selectable digital filters for linear or minimum phase responses.

Feature Summary

• Advanced multi-bit sigma-delta architecture with high jitter tolerance
• Supports PCM (16-32 bit, 32-192kHz) and DSD (Direct and Plus modes)
• Selectable digital filters including sharp/slow roll-off, non-half band, and minimum phase
• Fine resolution volume control (0.125dB steps) with soft mute and anti-clipping

Applications

• Professional recording systems
• High specification CD, DVD, and SACD audio players
• Home theatre systems
• A/V receivers

Procurement Notes

Verify the ordering suffix against current manufacturer documentation. The GEDS/V suffix indicates a lead-free 28-SSOP package with a commercial temperature range (-0°C to +70°C). Confirm availability status as components may be subject to discontinuation notices. Ensure supply voltage requirements match system design constraints.

Selection Notes

Select this component for applications requiring high linearity and low pre-ringing. The device offers pin compatibility with the WM8740 and WM8741. Designers must provide separate analogue and digital power supplies. Interface selection between 2-wire, 3-wire serial, and hardware control modes depends on system connectivity requirements.

Part Context

This part belongs to the WM874x family of high-performance audio DACs. It shares pinout compatibility with the WM8740 and WM8741, facilitating direct upgrades or replacements in existing designs. The device utilizes a differential output stage to maximize dynamic range and signal integrity in professional audio environments.

Replacement Considerations

The WM8740 and WM8741 are pin-compatible alternatives within the same product family. Verify specific feature differences such as filter options or control interface capabilities before substitution.