WM8903CLGEFK/R

Overview

The WM8903CLGEFK/R is an ultra-low-power stereo CODEC designed for portable audio applications. It integrates high-performance analog-to-digital and digital-to-analog converters with a comprehensive set of analog inputs and outputs. The device supports multiple digital audio interfaces, including I2S, Left-Justified, and DSP modes. It features integrated class-D speaker drivers and headphone amplifiers, reducing the need for external components. The codec operates from a single supply voltage and includes advanced power management capabilities to extend battery life in mobile devices.

Feature Summary

• Integrated Class-D speaker drivers and headphone amplifiers for direct drive capability
• Ultra-low-power architecture optimized for extended battery operation in portable electronics
• Support for multiple digital audio interface formats including I2S and Left-Justified
• High signal-to-noise ratio performance for clear audio playback and recording

Applications

• Smartphones and tablets
• Portable media players
• Digital voice recorders
• Navigation systems

Procurement Notes

Verify the complete part number against manufacturer documentation to ensure correct suffixes for packaging and temperature range. Confirm RoHS compliance status through official datasheets or certificates of conformity. Check for any recent process change notifications that may affect pin compatibility or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing portable audio systems requiring integrated speaker and headphone driving capabilities. Ensure the host processor supports the required digital audio interface protocols. Verify that the available supply voltages match the system requirements for both analog and digital sections. Consider thermal dissipation requirements for the integrated amplifier stages in compact enclosures.

Part Context

The WM8903 belongs to Cirrus Logic's family of low-power audio codecs. It is often compared with the WM8904, which offers similar functionality but may differ in specific package options or minor feature sets. Both parts target the same portable audio market segment, providing integrated solutions for mobile device manufacturers seeking to minimize board space and component count.

Replacement Considerations

The WM8904 is a documented alternative within the same product family. Verify pinout compatibility and software register configuration differences before substitution. Ensure that any changes in package dimensions or thermal characteristics are acceptable for the existing PCB layout.