SI2417-C-FT

Overview

The SI2417-C-FT is a two-chip fax modem chipset component from the ISOmodem family, designed for global PSTN connectivity. It supports fax connect rates up to 14,400 bps and operates within a digital supply voltage range of 3.0 V to 3.6 V. The device integrates a direct access arrangement (DAA), DSP data pump, modem controller, codec, and on-chip memory. It accommodates ambient temperatures from 0 °C to 70 °C and utilizes a 24-pin TSSOP package.

Feature Summary

• Integrated silicon direct access arrangement (DAA) providing globally programmable telephone line interface compliance
• Supports ITU-T T.31 compliant Class 1 commands with automatic rate negotiation for G3 and Super G3 fax communication
• Includes built-in caller ID decoding, DTMF detection/generation, and data/fax/voice call discrimination capabilities

Applications

• Fax machines
• Fax telephones
• Multifunctional printers
• Fax servers

Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and packaging configuration. Confirm compatibility with the paired Si3018 DAA component as specified in the official datasheet. Ensure the source documentation aligns with the manufacturer's current revision standards before finalizing procurement.

Selection Notes

Select this model when a dedicated fax-only solution with integrated analog isolation is required. It is suitable for designs needing minimal external components compared to discrete implementations. Verify that the host system can support the necessary serial or parallel interface protocols defined in the functional description.

Part Context

This component belongs to the ISOmodem family developed by Silicon Laboratories, now part of Skyworks Solutions Inc. The chipset architecture combines a digital modem controller with an analog DAA to replace multiple discrete components including transformers and relays. This integration significantly reduces board space and simplifies global regulatory compliance.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.