SI2493-D-FS

Overview

The SI2493-D-FS is a system-side ISOmodem component from Skyworks Solutions, designed as part of the Si2493 chipset with the Si3018 line-side device. It provides ITU-T V.92-compliant data modem functionality over PSTN lines. The device supports connect rates up to 56 kbps downstream and 48 kbps upstream. It operates on a digital supply voltage (VD) ranging from 3.0 V to 3.6 V. The typical total supply current is 17 mA at nominal conditions. The component utilizes an integrated Direct Access Arrangement (DAA) for global telephone line interfacing.

Feature Summary

• Supports full-duplex data transmission using ITU-T V.92, V.90, V.34, and Bell protocols.
• Integrates a programmable Direct Access Arrangement (DAA) with capacitive isolation.
• Compatible with UART, SPI, or parallel host interfaces.
• Includes firmware upgradeability and EEPROM interface capabilities.

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 'FS' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the required Si3018 line-side device for complete chipset operation. Confirm that the selected revision meets the intended environmental temperature range requirements.

Selection Notes

Select the SI2493-D-FS when a compact embedded modem solution with integrated DAA is required. This component is suitable for applications needing V.92 compliance and minimal external component count. Consider the 24-pin TSSOP option if parallel interface or voice codec support is necessary, as the 16-pin variant lacks these features.

Part Context

The SI2493 belongs to the ISOmodem family, which combines a system-side modem controller with a line-side DAA. The 'D' in the part number indicates Revision D of the datasheet. The 'FS' suffix typically denotes a specific packaging configuration, such as tape and reel, distinct from tube packaging options like 'GT'.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult the manufacturer's cross-reference tools or application notes for parametrically similar alternatives.