MAX3800UHJ-T

Overview

The MAX3800UHJ-T is a +3.3V adaptive cable equalizer and cable driver integrated on a single chip, designed for coaxial and twin-axial point-to-point communications. It supports data rates up to 3.2Gbps with adjustable output amplitude and automatic equalization for skin-effect losses up to 30dB at 1.6GHz. The device operates within a supply voltage range of 3.14V to 3.46V and consumes approximately 65mA typical current. It features differential CML inputs and outputs, loss-of-signal detection, and a cable integrity monitor. The component is housed in a 32-pin TQFP package with an exposed pad.

Feature Summary

• Integrates a cable driver and an adaptive equalizer on a single chip for independent operation.
• Automatically adjusts equalization to compensate for copper cable attenuation caused by skin-effect losses.
• Provides adjustable cable driver output amplitude via an external resistor.
• Includes loss-of-signal indicator and cable integrity monitor outputs.

Applications

• High-speed links in communications and data systems
• Backplane and interconnect applications
• SDH/SONET transmission equipment

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm tape-and-reel packaging and lead-free status. Confirm that the component meets RoHS compliance requirements for the intended application. Ensure compatibility with the required operating temperature range and power supply specifications before procurement.

Selection Notes

Select this component for applications requiring simultaneous signal driving and adaptive equalization over copper media. Consider the 3.2Gbps maximum data rate and the need for +3.3V power supply. Evaluate the 32-pin TQFP package constraints and thermal management requirements due to the exposed pad design.

Part Context

The MAX3800 series combines a cable driver and an adaptive equalizer to extend the usable length of copper cables in high-frequency interconnects. This specific part number represents the tape-and-reel version of the MAX3800, facilitating automated assembly processes while maintaining the same functional characteristics as the tray-packaged variant.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.