SI32172-C-FM1R

$2.30

Description：IC TELECOM INTERFACE 42QFN
Series：ProSLIC®

SKU:b7ed83a74261 Category: Telecom Brand: Skyworks Solutions Inc.

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Product introduction

SI32172-C-FM1R is listed in the Telecom range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is IC TELECOM INTERFACE 42QFN. Review the specifications below when checking this part for your BOM.

Telecom specifications for SI32172-C-FM1R

Description：IC TELECOM INTERFACE 42QFN
Series：ProSLIC®
Mfr：Skyworks Solutions Inc.
Package：Tape & Reel (TR)
Function：Subscriber Line Interface Concept (SLIC), CODEC
Interface：ISI
Number of Circuits：1
Voltage - Supply：3.13V ~ 3.47V
Current - Supply：-
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Package / Case：42-VFQFN Exposed Pad
Supplier Device Package：42-QFN (5x7)
Power (Watts)：750 mW
Grade：-
Qualification：-

Telecom datasheet and documents for SI32172-C-FM1R

SI32172-C-FM1R

Telecom Overview

The SI32172-C-FM1R is a single-channel ProSLIC FXS interface IC from Skyworks Solutions, operating within a 3.13 V to 3.47 V supply range and supporting an ambient temperature of 0 °C to 70 °C. It utilizes a proprietary three-wire ISI digital interface and provides a maximum battery voltage of –110 V. The device supports wideband voice transmission and includes DTMF generation capabilities. Packaged in a 5x7 mm 42-pin QFN, it integrates a tracking DC-DC controller for optimal line state management.

Telecom Feature Summary

Performs all BORSCHT functions for complete FXS telephony solutions
Integrates a tracking DC-DC controller with direct MOSFET connection
Supports software-programmable parameters including AC impedance and loop feed current
Features patented low power ringing technology

Telecom Applications

Customer Premise Equipment (CPE)
VoIP DSL Gateways and Routers
Integrated Access Devices (IAD)

Telecom Procurement Notes

Verify the specific ordering suffix against official Skyworks documentation to confirm package type and temperature grade. Ensure compatibility with the required ISI digital interface protocol before procurement. Confirm that the –110 V battery rating aligns with the target application's line requirements.

Telecom Selection Notes

Select this component when a single-channel FXS solution with a three-wire ISI interface is required. It is suitable for short to medium loops and applications needing wideband voice support. Verify that the host SoC supports the integrated serial interface protocol for proper system integration.

Telecom Part Context

This part belongs to the Si3217x-C family of ProSLIC devices. These are pin-compatible single-channel products designed to implement complete foreign exchange station interfaces. They operate from a 3.3 V supply and support both 3.3 V and 1.8 V I/O levels for flexible system design.