SI32183-A-GM

Telecom Overview

The Si32183-A-GM is a single-channel ProSLIC FXS telephony interface IC operating from a 3.3 V supply with 1.8 V I/O support. It features an ISI digital interface, DTMF detection, and parametric maximum loop transmission (MLT). The device operates within a temperature range of –40 to 85 °C and supports a maximum battery voltage of –106 V in a QFN36 package.

Telecom Feature Summary

• Performs all BORSCHT functions for complete FXS solutions
• Supports wideband voice and on-hook transmission
• Includes integrated DC-DC controller with low-cost capacitive boost configuration
• Features software-programmable parameters including ringing and impedance

Telecom Applications

• VoIP Gateways and Routers
• xDSL IADs
• Analog Terminal Adapters (ATA)
• Wireless Fixed Terminals (WFT)

Telecom Procurement Notes

Verify the specific ordering suffix against official Skyworks documentation to confirm package type and temperature rating. Ensure compatibility with the required digital interface protocol before procurement. Confirm RoHS compliance status through manufacturer datasheets.

Telecom Selection Notes

Select this model when an ISI interface and DTMF detection are required. Compare against the Si32181 variant if PCM interface capability is needed instead. Verify that the QFN36 package dimensions fit the target PCB layout constraints.

Telecom Part Context

This component belongs to the Si3218x family of single-chip FXS solutions. It shares pin compatibility with other devices in the series, allowing for design flexibility across different interface requirements and feature sets within the same product line.

Telecom Replacement Considerations

The Si32181-A-GM offers similar functionality but utilizes a PCM interface instead of ISI. Verify interface compatibility before substitution. Other family members may lack DTMF detection or operate at different temperatures.