SI2404-D-GTR

Overview

The Skyworks Solutions SI2404-D-GTR is a system-side component of the ISOmodem family, designed as a complete embedded modem chipset. It operates with a digital supply voltage (VD) ranging from 3.0 V to 3.6 V and supports ambient temperatures from 0 °C to 70 °C for the F-grade variant. The device provides data rates up to 33.6 kbps over PSTN using ITU-T V.34 or V.32bis protocols. It features an integrated Direct Access Arrangement (DAA) with over 6000 V capacitive isolation and supports UART, SPI, or parallel host interfaces.

Feature Summary

• Integrated direct access arrangement (DAA) providing global telephone line interface compliance
• Supports standard AT command sets and firmware upgrades via EEPROM interface
• Includes DSP data pump, modem controller, codec, and on-chip memory eliminating external components
• Capable of Type I and II caller ID decode and DTMF detection/generation

Applications

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

Procurement Notes

Verify the specific package configuration required for the design, as the SI2404 is available in both 16-pin SOIC and 24-pin TSSOP options. Confirm that the selected variant matches the intended host interface and pinout requirements. Ensure compatibility with the corresponding Si3018/10 line-side device for proper chipset operation.

Selection Notes

Select the SI2404 when a maximum data rate of 33.6 kbps is sufficient for the application. This model supports V.34 and V.32bis protocols but does not support V.90 speeds, which are reserved for the Si2457. Choose the appropriate temperature grade (F or G) based on the operating environment constraints.

Part Context

The SI2404 is part of the ISOmodem family, which includes the Si2457, Si2434, and Si2415. These devices serve as the system-side components in a two-part chipset solution paired with the Si3018/10 line-side device. The family utilizes patented DAA technology to minimize external component count and footprint.

Replacement Considerations

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