SI2434-D-GTR

Overview

The SI2434-D-GTR is a global Data Access Arrangement (DAA) modem integrated circuit manufactured by Skyworks Solutions Inc. It operates within the ISOmodem series and supports data rates up to 33.6 kbps. The device complies with V.21, V.22, V.23, V.29, V.32, Bell 103, and Bell 212A standards. It functions on a supply voltage range of 3V to 3.6V and utilizes a 24-TSSOP package with a width of 4.40mm. The component is designed for surface mount installation and maintains a Moisture Sensitivity Level (MSL) of 3.

Feature Summary

• Integrates global DAA capabilities for worldwide telephony compliance
• Supports multiple legacy modulation protocols including V-series and Bell standards
• Operates on low voltage single-supply configurations

Applications

• Global fax machine implementations
• Voice over IP gateways requiring analog interface
• Industrial telemetry systems using dial-up connections

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm tape-and-reel packaging versus tube variants. Ensure compatibility with existing board layouts regarding the 24-TSSOP footprint dimensions. Confirm that the selected revision matches the required regulatory certifications for the target market. Cross-reference the datasheet version to validate pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring support for older analog modem protocols alongside modern digital interfaces. Compare performance requirements against the SI2493 if higher speed V.34 or V.90 modulation is necessary. Evaluate power consumption constraints as the device operates within a specific voltage window. Consider the physical package size relative to available PCB space in compact embedded designs.

Part Context

This part belongs to the Skyworks ISOmodem family, which provides complete modem solutions for telephone network interfaces. The SI2434 variant specifically targets lower-speed applications compared to the SI2493. It serves as a bridge between digital host processors and the public switched telephone network. The family shares common architectural features while differing in supported protocol speeds and regional DAA configurations.

Replacement Considerations

The SI2434-D-GT serves as a direct tube-packaged alternative. For applications requiring faster data transmission, the SI2493 series offers backward compatibility with additional V.34 support. Verify pin-to-pin compatibility and software driver availability when substituting these components in existing designs.