SI32266-C-FMR

Telecom Overview

The SI32266-C-FMR is a single-channel ProSLIC telephony interface integrated circuit manufactured by Skyworks Solutions Inc. It functions as a Subscriber Line Interface Circuit (SLIC) and CODEC, designed for FXS applications. The device supports standard telephone line signaling and audio processing within the telecommunications sector. It operates at a supply voltage of 3.3V and is housed in a 50-WFQFN exposed pad package with surface mount installation. The component is rated for an operating temperature range from 0°C to +70°C.

Telecom Feature Summary

• Integrates SLIC and CODEC functionalities for single-channel voice processing
• Supports FXS line interface operations with DTMF detection capabilities
• Features internal ISI compensation and tracking shared DC-DC controller
• Provides digital interfaces including GCI, PCM, and SPI for system connectivity

Telecom Applications

• PSTN gateway implementations
• VoIP endpoint devices
• Telecom base station interfaces
• Analog telephone adapters

Telecom Procurement Notes

Verify the specific suffix 'FMR' against official Skyworks documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the required 3.3V supply and thermal management requirements for the 50-QFN package. Cross-reference the datasheet revision to validate electrical characteristics and pinout assignments before integration into the design.

Telecom Selection Notes

Select this component for designs requiring a single-channel analog front-end with integrated codec capabilities. Consider the 50-QFN footprint and thermal dissipation needs when planning the PCB layout. Verify that the application environment stays within the specified 0°C to +70°C operating range and that the digital interface protocol matches the host processor.

Telecom Part Context

This part belongs to the ProSLIC family of telephony interface ICs from Skyworks Solutions. These components are widely used in modern telecommunications equipment to bridge analog telephone lines with digital systems. The SI32266 variant specifically targets single-line applications, offering a compact solution for voice signal conditioning and line driving.

Telecom Replacement Considerations

Consult official Skyworks substitution guides for verified alternatives. Potential candidates within the same family include the SI32261 series or other ProSLIC variants with compatible pinouts and electrical specifications. Always validate functional equivalence through official datasheets.