SI32182-A-GM

Telecom Overview

The Si32182-A-GM is a single-channel ProSLIC Foreign Exchange Subscriber (FXS) interface IC from Skyworks Solutions. It operates on a 3.3 V supply with 1.8 V I/O support and integrates BORSCHT functions, including battery feed up to -106 V, ringing, signaling, coding, hybrid, and test capabilities. The device features a PCM/SPI interface, wideband voice support (150 Hz to 6.8 kHz), and programmable DC loop feed current ranging from 10 to 45 mA. It utilizes a flexible integrated tracking DC-to-DC controller and is housed in a 40-pin 6 mm x 6 mm QFN package.

Telecom Feature Summary

• Integrates complete FXS telephony solution with all BORSCHT functions in a compact package
• Supports wideband audio with software-programmable impedance and transhybrid balance
• Features patented low-power ringing and flexible integrated DC-to-DC controller
• Includes comprehensive line diagnostics and monitoring via internal ADC

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 grade suffix for temperature range requirements; 'A' indicates commercial grade (0°C to +70°C). Confirm package type matches the 40-pin QFN footprint. Ensure host system supports the required PCM or SPI digital interface protocols. Check RoHS compliance documentation for final assembly verification.

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. Consider the integrated DC-to-DC controller if minimizing external components is a priority. Verify that the host processor can handle the required PCM or SPI communication speeds.

Telecom Part Context

The Si32182-A-GM belongs to the Si3218x family of ProSLIC single-channel FXS solutions. This series is designed to meet global telephony specifications while offering high integration levels. The family includes variants with different temperature grades and interface options, providing flexibility for various telecom equipment designs.

Telecom Replacement Considerations

Direct replacements within the same family include other Si3218x variants with compatible pinouts and functionality. Verify electrical parameters and package dimensions before substitution. Cross-model compatibility should be confirmed through official Skyworks documentation.