SI32192-A-GM1

Telecom Overview

The SI32192-A-GM1 is a single-channel Foreign Exchange Station (FXS) interface integrated circuit from Skyworks Solutions. It operates on a 3.3 V supply with a 3-wire ISI digital interface supporting 1.8 to 3.3 V I/O levels. The device supports a maximum battery voltage of –100 V and functions within an ambient temperature range of –40 °C to +85 °C. It integrates BORSCHT functions, wideband audio processing, and a programmable DC-DC controller for capacitive boost tracking supplies. The component is housed in a 38-pin QFN package measuring 4 x 6 mm.

Telecom Feature Summary

• Performs all BORSCHT functions including battery feed, over-voltage protection, ringing supervision, and line testing.
• Supports wideband audio with expanded frequency response for enhanced voice quality.
• Integrates a programmable DC-DC controller optimized for low-cost capacitive boost configurations.
• Features built-in DSP capabilities for metallic loop testing and self-diagnostic routines.

Telecom Applications

• VoIP Gateways and Routers
• xDSL Integrated Access Devices (IADs)
• Optical Network Terminals/Units (ONT/U)
• Analog Terminal Adapters (ATA)

Telecom Procurement Notes

Verify the specific ordering suffix 'GM1' confirms industrial temperature ratings (-40°C to +85°C) and RoHS compliance. Confirm the package type matches the required 38-pin QFN footprint. Ensure the host system supports the 3-wire ISI interface protocol. Check for any recent Product Change Notices regarding manufacturing site or material updates.

Telecom Selection Notes

Select this model for applications requiring a complete FXS solution in a compact form factor. It is suitable for short- to medium-loop telephony interfaces. Consider the Si32193 variant if DTMF detection functionality is required. Ensure the design accommodates the specific thermal resistance characteristics of the exposed pad QFN package.

Telecom Part Context

This component belongs to the Si3219x family of ProSLIC devices. These are single-channel FXS solutions designed to replace discrete analog front-end components. The series offers global programmability for various international telephony standards. It serves as a direct replacement for older generation SLICs in modern telecom infrastructure.

Telecom Replacement Considerations

Si32192-A-FM1: Commercial grade version with 0 to 70 °C operating range.