SI2493-C-FSR

Overview

The SI2493-C-FSR is a Data Access Arrangement (DAA) integrated circuit from the ISOmodem series, manufactured by Skyworks Solutions Inc. It supports global telephony standards including V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, and Bell 212A. The device operates on a supply voltage of 3V to 3.6V with a typical current consumption of 17 mA. It features SPI and UART interfaces and functions at a frequency of 4.92 MHz with data rates up to 56 kb/s. Packaged in a 24-TSSOP format, it operates within a temperature range of -40°C to +85°C.

Feature Summary

• Supports comprehensive global modem protocols for international telecommunications compliance
• Integrates system-side DAA functionality for direct network connection
• Provides flexible digital interface options via SPI and UART connections

Applications

• Global telephone modems requiring multi-standard protocol support
• Data Access Arrangement (DAA) implementations for telecom equipment
• System-side modem controllers in networking hardware

Procurement Notes

Verify component authenticity through authorized distributors or Skyworks official channels. Confirm RoHS status and moisture sensitivity level (MSL 3) prior to assembly. Check for obsolescence notices as this part may be subject to discontinuation. Ensure proper handling procedures are followed due to ESD sensitivity.

Selection Notes

Select this component for designs requiring a single-chip solution for global dial-up connectivity. Ensure the PCB layout accommodates the 24-TSSOP package dimensions. Verify that the host processor supports the required SPI or UART baud rates. Consider thermal management within the specified operating temperature range.

Part Context

This IC belongs to the ISOmodem family, designed for versatile telecommunication applications. It serves as a bridge between digital hosts and analog telephone lines. The part integrates necessary line driving and receiving circuits, simplifying design complexity compared to discrete solutions.

Replacement Considerations

Check Skyworks documentation for direct pin-compatible substitutes. Evaluate alternative ISOmodem variants like SI2493-D-GTR for updated availability. Ensure any replacement maintains identical protocol support and electrical characteristics.