WM8903CLGEFK

Overview

The WM8903CLGEFK is a stereo audio codec manufactured by Cirrus Logic Inc., designed for mobile and consumer applications. It integrates two analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs) with a resolution of 24 bits. The device operates on an analog supply voltage ranging from 1.71V to 2V and a digital supply voltage between 1.62V and 3.6V. Typical signal-to-noise ratios are 95 dB for the ADC and 100 dB for the DAC. It supports sampling rates up to 96 kHz and features a 48-pin WLCSP package measuring 3.65x3.55 mm, suitable for surface mount installation within a -40°C to 85°C operating temperature range.

Feature Summary

• Integrates high-performance stereo audio conversion capabilities with low power consumption characteristics.
• Supports multiple digital audio interfaces including I2S, left-justified, and right-justified formats.
• Includes integrated headphone drivers and microphone bias supplies for simplified system design.

Applications

• Mobile phones and smartphones
• Tablets and portable media players
• Voice over IP (VoIP) devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix CLGEFK matches the required pinout and packaging specifications. Check for RoHS compliance documentation and ensure the part status aligns with current production lifecycle stages before integration into designs.

Selection Notes

Select this component when a compact stereo codec with integrated headphone output is required for space-constrained mobile devices. Ensure the system power budget accommodates the specified analog and digital voltage rails. Verify that the available digital interface protocols match the host processor's capabilities for seamless data transmission.

Part Context

This part belongs to the Cirrus Logic WM89xx series of audio codecs, which are widely used in portable electronics. The WM8903 specifically targets cost-sensitive mobile applications requiring high audio quality in a minimal footprint. It complements other components in the ecosystem such as amplifiers and power management ICs for complete audio subsystems.

Replacement Considerations

Direct substitutes may include the WM8900 or WM8901 series if pin compatibility and feature sets align. Verify electrical parameters and package dimensions carefully. Consult Cirrus Logic documentation for recommended upgrades or obsolescence notices regarding legacy audio codec families.