XRT73R12IB

Overview

The XRT73R12IB is a twelve-channel telecom interface integrated circuit manufactured by MaxLinear. It functions as a Line Interface Unit (LIU) designed for DS3, E3, and STS-1 transmission standards. The device operates within a supply voltage range of 3.3V to 5V and supports an industrial temperature range from -40°C to +85°C. It features a data rate capability of 34.366 Mb/s per channel. The component is housed in a PBGA-217 package suitable for surface mount technology.

Feature Summary

• Integrates twelve independent line interface channels for high-density telecommunications applications
• Supports multiple international digital hierarchy standards including DS3, E3, and STS-1
• Operates with flexible power supply requirements ranging from 3.3V to 5V

Applications

• Telecommunications network infrastructure equipment
• Digital cross-connect systems
• Multiplexer units requiring DS3/E3/STS-1 interfaces

Procurement Notes

Verify the specific suffix and full part number against official MaxLinear documentation before procurement. Confirm current lifecycle status as components may be discontinued or subject to product change notices. Ensure compatibility with existing system voltage levels and thermal management requirements for the specified operating temperature range.

Selection Notes

Select this component when a high-channel-count LIU solution is required for DS3, E3, or STS-1 protocols. Consider the PBGA-217 package constraints during PCB layout. Verify that the host system can support the 3.3V to 5V operating voltage window and meets the thermal dissipation needs for the industrial temperature grade.

Part Context

This component belongs to the XRT73 series of telecom interface ICs from MaxLinear. It provides a multi-channel alternative to single-channel LIUs, reducing board space and component count in high-port-density designs. The series is engineered for robust performance in carrier-grade networking environments.

Replacement Considerations

Consult official MaxLinear substitution guides for verified alternatives. Check for updated versions within the same family that may offer pin-compatible upgrades or enhanced feature sets while maintaining electrical compatibility.