SI2434-D-FTR

Overview

The SI2434-D-FTR is a system-side ISOmodem integrated circuit manufactured by Skyworks Solutions Inc. It operates within a digital supply voltage range of 3.0 V to 3.6 V and supports data rates up to 33.6 kbps using ITU-T V.34 modulation. The device accommodates multiple clock input frequencies, including 4.9152 MHz, 27 MHz, and 32.768 kHz. It features UART, SPI, or parallel host interfaces and utilizes a 24-pin TSSOP package with a tape-and-reel configuration.

Feature Summary

• Integrated direct access arrangement (DAA) providing global telephone line interface compliance
• Supports standard modem AT commands and firmware upgrades via EEPROM interface
• Includes Type I and II caller ID decode capabilities without external memory requirements
• Enables flexible clocking options utilizing low-cost oscillators for embedded applications

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 against official Skyworks documentation to confirm package type and reel specifications. Confirm that the Si2434 chipset combination is valid for the intended application as per the datasheet's ordering guide. Ensure environmental grades match the required operating temperature range for the deployment scenario.

Selection Notes

Select this component when a 33.6 kbps maximum data rate is sufficient for the target application. Verify compatibility with the paired Si3018/10 line-side device to ensure proper chipset functionality. Consider the 24-pin TSSOP footprint constraints during PCB layout design to accommodate the required external components.

Part Context

This part belongs to the ISOmodem family, which provides complete embedded modem solutions. The SI2434 serves as the system-side processor in a chipset architecture alongside the Si3018/10 line-side device. This integration eliminates the need for separate DSPs, codecs, and transformers, reducing the overall bill of materials and board space.

Replacement Considerations

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