XRT75R03IV-F

Overview

The XRT75R03IV-F is a telecommunications interface integrated circuit manufactured by MaxLinear. It functions as a three-channel Line Interface Unit (LIU) designed for DS3, E3, and STS-1 signal transmission. The device operates on a single 5 V power supply and supports surface-mount installation in an LQFP-176 package. It is rated for industrial temperature ranges from -40°C to +85°C. This component facilitates high-speed digital signal interfacing for telecom infrastructure applications requiring multi-channel line connectivity.

Feature Summary

• Integrates three independent channels for DS3, E3, and STS-1 line interface unit operations
• Supports standard 5 V single-supply operation for simplified power design
• Provides robust performance across extended industrial temperature environments

Applications

• Telecommunications network equipment requiring DS3/E3/STS-1 line interfacing
• Digital cross-connect systems and multiplexers
• Network synchronization and timing infrastructure

Procurement Notes

Verify the specific suffix 'IV-F' against official MaxLinear documentation to confirm pinout compatibility and environmental ratings. Confirm end-of-life status with authorized distributors before finalizing procurement plans due to potential availability constraints.

Selection Notes

Select this component when a three-channel LIU solution is required for DS3, E3, or STS-1 protocols. Ensure the design accommodates the LQFP-176 package dimensions and thermal requirements. Verify that the system voltage aligns with the specified 5 V operating range.

Part Context

This part belongs to the XRT75R series of telecom interface ICs from MaxLinear. It shares functional similarities with other channel counts in the family, such as the XRT75L03IV-F, but differs in specific electrical characteristics and packaging options defined by its unique model designation.

Replacement Considerations

Consult official MaxLinear substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully if considering similar LIU devices from other manufacturers.