SI32919-A-GSR

Telecom Overview

The Si32919-A-GSR is a single-channel Foreign Exchange Office (FXO) line-side device from Skyworks Solutions. It operates on a 3.0 V to 3.6 V supply and interfaces with the Si3217x ProSLIC family via patented capacitive isolation technology, providing greater than 5 kV of isolation. The component supports up to +6 dBm TX/RX levels, parallel handset detection, Type I and II caller ID, and integrated ring detection. It is housed in a 16-pin SOIC package.

Telecom Feature Summary

• Patented capacitive isolation barrier exceeding 5 kV for safe connection to FXS controllers
• Integrated ring detector with programmable thresholds and validation logic
• Supports Type I and Type II caller ID transmission and reception
• Parallel handset detection capability for multi-device line monitoring

Telecom Applications

• Customer Premise Equipment (CPE)
• VoIP DSL Gateways and Routers
• Wireless Local Loop (WLL) systems
• Integrated Access Devices (IAD)
• Analog Terminal Adapters (ATA)

Telecom Procurement Notes

Verify the specific suffix 'A-GSR' against the manufacturer's current ordering guide to confirm availability and packaging configuration. As an electronic component subject to change, confirm RoHS compliance and lead times directly with authorized distributors or the manufacturer before finalizing procurement plans.

Telecom Selection Notes

Select this part when designing an FXO interface that requires galvanic isolation from the host digital controller. Ensure the design pairs it with a compatible Si3217x series ProSLIC IC to utilize the integrated isolation features. Verify that the system power supply falls within the 3.0 V to 3.6 V operating range for optimal performance.

Telecom Part Context

The Si32919 is part of the Si3291x family of line-side devices designed to work exclusively with the Si3217x ProSLIC family. While the Si3217x handles the subscriber line interface circuit functions, the Si3291x provides the necessary isolation and line termination for connecting to central office switches or PBX lines.

Telecom Replacement Considerations

Direct replacements within the same family include other Si3291x variants such as the Si32911. Verify pin compatibility and specific feature sets like caller ID support or ring detection thresholds when substituting.