SI2434-D-FSR

Overview

The Skyworks Solutions SI2434-D-FSR is a system-side component of the ISOmodem family, designed for embedded modem applications. 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 (F-grade). The device provides data rates up to 33.6 kbps using ITU-T V.34 and V.32bis protocols. It features UART, SPI, or parallel host interfaces and utilizes a 4.915 MHz default clock input. The package is a 16-pin SOIC.

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 caller ID decode capabilities and DTMF detection/generation functions
• Eliminates external DSP, controller, codec, transformer, and crystal requirements

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 the manufacturer's official documentation to confirm package type and temperature grade. Ensure compatibility with the required Si3018/10 line-side device for complete chipset functionality. Confirm lead times and availability directly with authorized distributors as these factors are subject to change without notice.

Selection Notes

Select this model when a 16-pin surface-mount package is required for space-constrained designs. Verify that the application requires speeds up to 33.6 kbps rather than the higher speeds supported by the Si2457 variant. Ensure the host system can support one of the available interface modes: UART, SPI, or parallel.

Part Context

The SI2434 belongs to the ISOmodem family alongside the Si2457, Si2415, and Si2404. These devices function as system-side components in a chipset architecture paired with the Si3018 or Si3010 line-side devices. This integration allows for significant reduction in bill of materials and printed circuit board area compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitutes include the Si2457, Si2415, and Si2404 within the same ISOmodem family. Selection depends on required data rate and protocol support.