SI32266-C-FM1R

Telecom Overview

The SI32266-C-FM1R is a digital Subscriber Line Interface Concept (SLIC) integrated circuit manufactured by Skyworks Solutions Inc. It operates within a supply voltage range of 3.13V to 3.47V and supports an operating temperature range from 0°C to +70°C. The component is housed in a 50-WFQFN exposed pad package, specifically a 50-QFN (6x8) configuration, and is designed for surface mount installation. This device functions as a telecom interface IC, integrating subscriber line interface and codec capabilities.

Telecom Feature Summary

• Integrates digital SLIC and CODEC functionality for single-channel telephony applications
• Supports standard telephone interface signaling including FXS operation
• Includes DTMF detection capability for tone recognition
• Features ISI (Inter-Symbol Interference) mitigation technology

Telecom Applications

• Analog telephone adapter implementations
• VoIP gateway subscriber ports
• PABX system interface circuits
• Digital telephone handsets

Telecom Procurement Notes

Verify the specific suffix FM1R corresponds to the 50-QFN package variant when sourcing. Confirm that the C designation aligns with the required commercial temperature grade of 0°C to +70°C for the target environment. Ensure compatibility with the 3.13V to 3.47V supply rail constraints during board design validation.

Telecom Selection Notes

Select this component for designs requiring a compact single-channel solution with integrated codec processing. The 50-QFN package suits high-density PCB layouts. Consider the commercial temperature range limitations if the application requires operation below 0°C or above +70°C, where industrial variants may be necessary.

Telecom Part Context

This part belongs to the ProSLIC family of digital subscriber line interface products from Skyworks Solutions. It represents a consolidated solution combining analog front-end interface logic with digital signal processing for voice codecs. The series targets modern telecommunications equipment needing reduced component count and improved signal integrity compared to discrete analog solutions.

Telecom Replacement Considerations

Direct substitutes include other ProSLIC devices such as the SI32261 or SI32260 series, provided the package pinout and thermal characteristics match the existing footprint. Verify functional equivalence regarding ISI handling and DTMF detection requirements before substitution.