SI2434-D-FT

Overview

The SI2434-D-FT is a system-side ISOmodem network controller and processor IC manufactured by Skyworks Solutions. It supports data rates up to 33.6 kbps using V.34 protocols and operates on a 3.3 V supply voltage with a typical current consumption of 17 mA. The device utilizes SPI or UART interfaces for host communication and functions within an ambient temperature range of 0°C to +70°C. It is housed in a 24-pin TSSOP package designed for surface-mount installation.

Feature Summary

• Integrated direct access arrangement (DAA) technology providing global telephone line interface compliance
• Supports standard modem AT commands and firmware upgradeable architecture
• Includes Type I and II caller ID decode capabilities without external memory requirements
• Features DTMF detection and generation alongside SMS/MMS support

Applications

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

Procurement Notes

Verify the specific ordering suffix 'FT' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with the Si3018/10 line-side device as required by the chipset design. Confirm that the component meets RoHS compliance standards before integration into final assemblies.

Selection Notes

Select this model when V.90 speeds are not required but V.34 performance is sufficient for the application. Compare pinout configurations between the 16-pin SOIC and 24-pin TSSOP options to match PCB layout constraints. Verify that the operating temperature range aligns with the environmental conditions of the target deployment scenario.

Part Context

This component belongs to the ISOmodem family, which combines system-side processing with line-side analog interfacing. The datasheet covers multiple variants including the Si2457, Si2434, Si2415, and Si2404. The Si2434 specifically targets applications requiring V.34 connectivity while maintaining the compact footprint and low external component count characteristic of the series.

Replacement Considerations

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