WM1811GECS/R

Overview

The WM1811GECS/R is a multi-channel audio hub CODEC designed for smartphones and portable multimedia devices. It integrates stereo Class D speaker drivers and Class W headphone amplifiers to minimize power consumption. The device features a 24-bit, 2-channel hi-fi DAC with 100dB SNR and a 2-channel hi-fi ADC. It supports asynchronous stereo duplex sample rate conversion, digital mixing, and parametric EQ. Power requirements are limited to two voltage supplies, with internal rails generated by integrated LDOs. The component is housed in an 80-ball W-CSP package measuring 4.158 x 3.876 x 0.607mm.

Feature Summary

• Integrated stereo Class D speaker driver and capless Class W headphone driver with charge pump
• Smart microphone interface supporting up to two digital microphones with activity detection
• Asynchronous stereo duplex sample rate conversion and powerful digital mixing capabilities
• Active noise reduction circuits including DC offset correction and ground loop noise cancellation

Applications

• Smartphones and music phones
• Portable navigation systems
• Tablets and eReaders
• Portable media players

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure the procurement channel provides valid traceability for this Wolfson Microelectronics/Cirrus Logic component.

Selection Notes

Select this component for designs requiring high-fidelity audio processing with integrated output stages. The dual supply requirement and integrated LDOs simplify power management. Verify that the system architecture supports the required digital audio interfaces and sample rates. Consider the 80-ball W-CSP package constraints during PCB layout and thermal design.

Part Context

This part belongs to the WM1811A series of multi-channel audio hub CODECs originally developed by Wolfson Microelectronics, which was acquired by Cirrus Logic. The series targets mobile applications demanding low power consumption and high audio quality within a compact form factor.

Replacement Considerations

Check for updated revisions within the WM1811A family. Verify pin compatibility if considering alternative CODECs from Cirrus Logic or other manufacturers offering similar integration levels.