SI2415-C-FT

Overview

The Skyworks Solutions Inc. SI2415-C-FT is a system-side component of the ISOmodem family, designed for embedded modem applications. It supports data rates from 2.4 kbps to 33.6 kbps and operates with a digital supply voltage (VD) ranging from 3.0 V to 3.6 V. The device features an integrated Direct Access Arrangement (DAA) providing over 6000 V capacitive isolation. It supports ITU-T and Bell protocols including V.90, V.34, V.32bis, V.22bis, V.21, and Bell 103/212A. Available in a 16-pin SOIC package, it utilizes UART, SPI, or parallel interfaces and requires no external ROM or RAM.

Feature Summary

• Integrated Direct Access Arrangement (DAA) eliminates the need for separate transformers, relays, and opto-isolators.
• Supports multiple host interfaces including UART, SPI, and parallel connections.
• Capable of automatic rate negotiation and fast connect capabilities.
• Includes Type I and II caller ID decode functionality.

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 Si3018 line-side device as specified in the chipset combination list within the datasheet. Confirm that the selected variant meets the required environmental operating conditions for the target application.

Selection Notes

Select this component when designing embedded modems requiring global DAA integration without external DSPs. The 16-pin option is suitable for compact footprints. Verify protocol support requirements; note that V.90 speeds are supported on the Si2457 only, while the Si2415 supports up to 33.6 kbps. Ensure clocking options align with the design constraints regarding crystal frequency availability.

Part Context

The SI2415 is part of the ISOmodem family, which includes the Si2457, Si2434, and Si2404. These devices serve as the system-side components in a chipset architecture paired with the Si3018 or Si3010 line-side devices. This family provides a complete solution for PSTN connectivity by integrating modem control, codec, and analog interface functions into a single compact package.

Replacement Considerations

Public confirmed substitute part numbers: Si2457, Si2434, Si2404. Note that these alternatives may offer different maximum data rates or feature sets compared to the SI2415. Verify pinout compatibility and software command set support before substitution.