XRT73LC03AIV-F

Overview

The XRT73LC03AIV-F is a three-channel Line Interface Unit (LIU) manufactured by MaxLinear, designed for DS3, E3, and STS-1 telecommunications applications. It integrates transmitter and receiver circuits within a single package to facilitate high-speed digital signal transmission over copper lines. The device operates at a supply voltage of 3.3V and supports serial data rates corresponding to T3/E3 standards. It is housed in a surface-mount LQFP-120 package with a tray packaging configuration. This component serves as a critical interface between digital logic systems and physical transmission media in telecom infrastructure.

Feature Summary

• Integrates three independent LIU channels for simultaneous DS3, E3, or STS-1 signal processing
• Supports 3.3V operation for compatibility with modern low-voltage digital interfaces
• Utilizes LQFP-120 surface-mount packaging for compact board integration

Applications

• Telecommunications line interface units for T3/E3 networks
• STS-1 signal conditioning and transmission systems
• Digital subscriber line equipment requiring multi-channel LIU functionality

Procurement Notes

Verify the specific suffix IV-F against official MaxLinear documentation to confirm temperature range and package variant. Confirm end-of-life status through authorized distributors, as availability may be restricted. Ensure RoHS compliance details are validated against current regulatory requirements before procurement planning.

Selection Notes

Select this component when designing systems requiring integrated three-channel LIU functionality for DS3/E3/STS-1 standards. Compare channel count and voltage requirements against alternatives like the XRT73L02MES if fewer channels suffice. Verify thermal performance and package constraints associated with the LQFP-120 form factor during layout design.

Part Context

This part belongs to the XRT73LC03A series of Line Interface Units from MaxLinear. It shares functional similarities with other members of the family but is distinguished by its specific three-channel configuration and 3.3V operating voltage. The series addresses the need for consolidated interface solutions in high-density telecom hardware designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate legacy Exar-branded equivalents only if explicitly documented by the manufacturer as pin-compatible and functionally identical.