SI32182-A-FMR

Telecom Overview

The Si32182-A-FMR is a single-channel ProSLIC Foreign Exchange Station (FXS) interface IC manufactured by Skyworks Solutions. It operates from a 3.3 V supply and supports 1.8 V I/O levels via a PCM or SPI digital interface. The device integrates BORSCHT functions, including battery feed up to -106 V, ringing, signaling, coding, hybrid, and test capabilities. It features wideband voice support with a 16 kHz sample rate and programmable DC loop feed ranging from 10 to 45 mA. The component is housed in a 40-pin QFN package measuring 6 x 6 mm.

Telecom Feature Summary

• Integrates complete FXS telephony solution with BORSCHT functions in a compact 6 x 6 mm package
• Supports wideband audio with 16 kHz sampling for enhanced voice quality
• Features patented low-power ringing generation with programmable parameters
• Includes flexible integrated tracking DC-to-DC controller supporting capacitive boost configurations

Telecom Applications

• VoIP gateways and routers
• xDSL Integrated Access Devices (IADs)
• Optical Network Terminals/Units (ONTs/ONUs)
• Analog Terminal Adapters (ATAs)

Telecom Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm package type and temperature grade. Confirm RoHS compliance status through the manufacturer's Certificate of Conformance. Ensure ESD handling precautions are strictly followed during assembly to prevent permanent device damage.

Telecom Selection Notes

Select this component for applications requiring a single-channel FXS interface with global programmability. It is suitable for short to medium loops and supports both loop and ground start operations. Verify that the host system can provide the required 3.3 V supply and compatible PCM/SPI interface signals.

Telecom Part Context

The Si32182-A-FMR belongs to the Si3218x series of ProSLIC products. This family provides single-channel foreign exchange subscriber line interface solutions compliant with global specifications. The series includes variants with different temperature grades and packaging options to suit various deployment environments.

Telecom Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers within the Si3218x family. Verify pin compatibility and electrical specifications before replacing existing components.