SI2404-C-GT

Overview

The Skyworks Solutions Inc. SI2404-C-GT is a system-side component of the ISOmodem family, designed as part of a chipset with the Si3018/10 line-side device. It provides a complete embedded modem solution ranging from 56,000 bps to 2400 bps. The device integrates a DSP data pump, modem controller, on-chip RAM and ROM, codec, and a direct access arrangement (DAA). It supports ITU-T V.90, V.34, V.32bis, V.32, V.23, V.22bis, V.22, V.21, Bell 212A, and Bell 103 protocols. The digital supply voltage (VD) operates between 3.0 V and 3.6 V. Available in 16-pin SOIC or 24-pin TSSOP packages, it offers UART, SPI, or parallel host interfaces.

Feature Summary

• Integrated Direct Access Arrangement (DAA) providing global telephone line interface compliance
• Supports standard AT command sets for programmable operation
• Capacitive isolation barrier exceeding 6000 V between system and line sides
• Firmware upgradeable via EEPROM interface

Applications

• Set-top boxes
• Point-of-sale terminals
• Text and video telephones
• Digital video recorders
• Remote monitoring systems

Procurement Notes

Verify the specific grade suffix against the manufacturer's ordering guide, as temperature ranges vary by designation. Confirm package availability, as options include 16-pin SOIC and 24-pin TSSOP. Ensure compatibility with the paired Si3018/10 line-side device for full functionality. Check for any recent product change notices regarding pin assignments or electrical specifications.

Selection Notes

Select based on required data rates; note that V.90 support is limited to the Si2457 variant within this family. Choose the appropriate package size (16-pin vs. 24-pin) depending on available PCB space and interface requirements. Verify operating temperature range needs against F-grade or G-grade designations. Consider clocking options, including low-cost oscillators or external clock inputs.

Part Context

This component belongs to the ISOmodem family, which includes the Si2457, Si2434, Si2415, and Si2404 system-side devices. These are designed to work in conjunction with the Si3018/10 line-side device. The family utilizes patented DAA technology to minimize external component count by integrating functions typically requiring separate DSPs, codecs, and transformers.

Replacement Considerations

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