WM8725CGED

Overview

The WM8725CGED is a high-performance stereo digital-to-analogue converter (DAC) designed for portable audio equipment and video CD players. It features selectable normal or I²S compatible serial data interfaces supporting 16 to 24-bit digital inputs, alongside high-performance digital filters and sigma-delta output DACs. The device achieves a signal-to-noise ratio of 99dB at 5V supply. It operates with input sampling rates from 8kHz to 96kHz and utilizes a system clock of 256fs or 384fs. The component is housed in a 14-lead SOIC package.

Feature Summary

• Stereo DAC with 99dB SNR performance
• Supports input sampling rates from 8kHz to 96kHz
• Sigma-delta design with 64x oversampling
• Selectable mute and de-emphasis functions

Applications

• Portable audio equipment
• Video CD players

Procurement Notes

Verify the specific ordering suffix required for the application. The standard tube version is designated as WM8725CGED, while the tape and reel variant is identified as WM8725CGED/R. Confirm that the selected part matches the intended packaging format before procurement.

Selection Notes

Ensure the system clock frequency aligns with the required sample rate, utilizing either 256fs or 384fs ratios. The device supports both normal MSB-first and I²S data formats via the FORMAT pin. Verify that the power supply voltage falls within the 3V to 5V range to maintain specified electrical characteristics.

Part Context

The WM8725CGED is manufactured by Wolfson Microelectronics plc. This component belongs to the WM8725 series of stereo DACs. The 'C' in the part number indicates an operating temperature range of -40°C to +85°C. The datasheet revision history notes a transition from copper wire bonding to reflect changes in manufacturing processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.