SI2438-B-FT

Overview

The SI2438-B-FT is a network controller and processor IC from Skyworks Solutions, classified as an ISOModem product. It supports V.34 data formats with a maximum data rate of 33.6 kb/s. The device operates on a supply voltage ranging from 3 V to 3.6 V, with a typical operating current of 17 mA. It features SPI and UART interface types and includes an internal oscillator frequency of 4.92 MHz. The component is housed in a 24-TSSOP package suitable for SMD/SMT installation. It functions within a temperature range of 0°C to +70°C and is RoHS compliant.

Feature Summary

• Supports V.34 data transmission standards for system-side modem applications
• Integrates network controller and processor capabilities within a single IC
• Provides flexible connectivity through SPI and UART interface options

Applications

• System-side ISOmodem implementations
• V.34 data communication systems
• Integrated voice and data modem solutions

Procurement Notes

Verify the specific suffix FT against official Skyworks documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Check lifecycle status as some sources indicate obsolete status for this specific part number. Ensure compatibility with required voltage levels and interface protocols before integration.

Selection Notes

Select this component for applications requiring dedicated V.34 data processing with integrated control logic. Consider the 24-TSSOP package constraints for PCB layout. Evaluate the 3.3 V power supply requirements against system design. Verify that the SPI and UART interfaces meet the host processor communication needs. Assess thermal performance within the specified operating temperature range.

Part Context

The SI2438-B-FT belongs to the Skyworks SI2439 series of network controllers and processors. It is designed specifically for system-side modem applications, distinguishing it from user-end modems. The component integrates modulation and demodulation functions with digital signal processing capabilities. It serves as a specialized solution for telecommunications equipment requiring reliable V.34 data transmission.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The SI2438-B-FT is listed with an obsolete lifecycle status by some distributors. Consult Skyworks Solutions technical support for potential end-of-life alternatives or direct replacements.