XRT75R03IVTR

Overview

The XRT75R03IVTR 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 standards. The device operates with a supply voltage range of 3.135 V to 3.465 V and draws a maximum supply current of 450 mA. It supports data rates up to 51.84 Mb/s and is rated for an industrial operating temperature range from -40°C to +85°C. The component is housed in a 176-pin Thin Quad Flat Package (TQFP) with dimensions of 24x24 mm, suitable for surface-mount assembly.

Feature Summary

• Integrates three independent line interface channels for DS3, E3, and STS-1 protocols within a single package.
• Provides comprehensive jitter attenuation capabilities to maintain signal integrity across digital transmission networks.
• Supports flexible power supply requirements compatible with standard 3.3V telecom logic levels.

Applications

• Digital Signal Level 3 (DS3) network infrastructure equipment
• E3 telecommunication transmission systems
• SONET STS-1 line interface modules

Procurement Notes

Verify the specific suffix IVTR against official MaxLinear documentation to confirm the tape-and-reel packaging configuration. Confirm that the part number matches the exact electrical specifications required for your design, as suffixes often indicate variations in temperature grade or packaging format. Cross-reference the manufacturer's latest datasheet to ensure compliance with current RoHS directives and material declarations before finalizing procurement plans.

Selection Notes

Select this component when a compact solution for multiple DS3/E3/STS-1 interfaces is required without sacrificing jitter performance. Ensure the target PCB layout can accommodate the 176-pin TQFP footprint and thermal dissipation needs associated with a 450 mA current draw. Verify that the system power supply provides stable voltage within the 3.135 V to 3.465 V window to guarantee reliable operation across the specified industrial temperature range.

Part Context

This part belongs to the XRT75 series of telecommunications interface ICs from MaxLinear. It shares functional similarities with other members like the XRT75L03IV-F but differs in specific integration features such as redundancy or desynchronization capabilities found in other variants. The series is designed to meet stringent telecom standards for high-speed digital transmission.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate cross-compatibility with other XRT75 series devices only if their datasheets explicitly state pin-to-pin compatibility and identical electrical characteristics. Consult MaxLinear directly for qualified replacement recommendations.