SI32391-B-FMR

Telecom Overview

The SI32391-B-FMR is a single-channel FXS PROSLIC analog interface IC manufactured by Skyworks Solutions. It operates within a supply voltage range of 3.15 V to 3.45 V and supports an operating temperature range from -40 °C to +85 °C. The component utilizes a QFN-48 surface-mount package and belongs to the SI32391 series of telecom interface ICs.

Telecom Feature Summary

• Integrated subscriber line interface concept (SLIC) for analog telephony applications
• Designed for FXS port implementation in telecommunications systems

Telecom Applications

• Telecommunications interface circuits
• Analog telephone line interfaces

Telecom Procurement Notes

Verify the specific suffix 'FMR' against official Skyworks documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact electrical characteristics required for your design, as variations exist within the SI32391 family.

Telecom Selection Notes

Select this component for designs requiring a single-channel FXS interface with standard commercial temperature ratings. Confirm that the QFN-48 footprint aligns with your PCB layout constraints and that the 3.3V nominal supply voltage meets system power requirements.

Telecom Part Context

This device is part of the Skyworks SI32391 series, which provides integrated solutions for subscriber line interface concepts. The series is designed to simplify the implementation of analog telephone ports in modern communication equipment.