SI2438-A-GTR

Overview

The SI2438-A-GTR is a V.34 data ISOmodem system-side integrated circuit with voice capabilities, manufactured by Skyworks Solutions Inc. It supports a data rate of 56 kbps and operates on a 3.3 V supply voltage with a typical current consumption of 17 mA. The device features SPI and UART interface types and is housed in a 24-TSSOP package suitable for surface mount installation. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports V.34 standard for high-speed data transmission over analog phone lines
• Integrates system-side modem functionality with voice processing capabilities
• Utilizes SPI and UART interfaces for flexible host connectivity

Applications

• High-speed internet access via analog phone lines
• System-side fax machine integration
• Voice-enabled communication terminals

Procurement Notes

Verify the specific suffix 'GTR' corresponds to the tape and reel packaging format as indicated by distributor listings. Confirm that the component remains active or check for obsolescence notices, as some related variants are marked not recommended for new designs. Ensure compatibility with the required 24-TSSOP footprint and verify moisture sensitivity level handling procedures during assembly.

Selection Notes

Select this component when a dedicated system-side modem solution with integrated voice support is required for V.34 compliant applications. Consider the 24-TSSOP package size for space-constrained designs. Evaluate the need for SPI versus UART interface compatibility with the target microcontroller or processor before finalizing the selection.

Part Context

This part belongs to the Skyworks ISOmodem family, designed for network controller and processor IC applications. It complements other variants like the SI2439 series, which may offer different pinouts or feature sets while maintaining similar core modem functionalities. The SI2438-A-GTR specifically targets system-side implementations requiring robust analog line interfacing.

Replacement Considerations

The SI2435-F-FTR is listed as a manufacturer-recommended alternative. Verify if the FTR suffix indicates a different packaging type compared to the GTR variant. Check for any functional differences between the SI2435 and SI2438 series regarding voice support or interface requirements.