SI32391-B-GM

Telecom Overview

The SI32391-B-GM is a single-channel FXS PROSLIC analog subscriber line interface circuit 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 is housed in a QFN-48 surface-mount package. Designed for telecom interface applications, it integrates essential functions for analog telephone line connectivity.

Telecom Feature Summary

• Integrates full subscriber line interface concept (SLIC) functionality for single-channel operation
• Supports standard FXS telephony interface protocols
• Optimized for low-voltage analog signal processing

Telecom Applications

• Analog telephone terminal equipment
• Telecom interface modules
• Subscriber line interface circuits

Telecom Procurement Notes

Verify the specific suffix GM against official Skyworks documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the ordering information matches the required QFN-48 footprint and RoHS compliance status before finalizing procurement specifications.

Telecom Selection Notes

Select this component when a single-channel analog interface with integrated SLIC capabilities is required. Confirm that the system power supply remains strictly between 3.15 V and 3.45 V. Verify that the thermal environment stays within the specified -40°C to +85°C operational range for reliable performance.

Telecom Part Context

This part belongs to the SI32391 series of PROSLIC devices. These components are designed to replace discrete analog front-end solutions by integrating hybrid coils, codecs, and line drivers into a single monolithic IC, simplifying PCB layout and reducing bill-of-materials complexity for telecom manufacturers.

Telecom Replacement Considerations

Consult official Skyworks substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameter alignment if considering cross-model replacements within the same product family.