MAX3800UTJ+

Overview

The MAX3800UTJ+ is a +3.3V adaptive cable equalizer and cable driver implemented on a single chip, designed for coaxial and twin-axial point-to-point communications. It supports data rates up to 3.2Gbps and automatically adjusts to skin-effect attenuation of up to 30dB at 1.6GHz. The device features differential CML inputs and outputs with adjustable output amplitude. It includes a loss-of-signal (LOS) indicator and a cable integrity monitor (CIM). Operating from a single +3.3V supply, it consumes approximately 200mW and functions within an ambient temperature range of 0°C to +85°C.

Feature Summary

• Adaptive equalization that automatically compensates for copper cable skin-effect losses up to 30dB at 1.6GHz
• Integrated cable driver with adjustable output amplitude controlled by an external resistor
• Built-in loss-of-signal detection and cable integrity monitoring outputs
• Low power consumption with the ability to disconnect the driver to reduce supply current

Applications

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

Procurement Notes

Verify the specific suffix UTJ against official documentation to confirm package type and temperature range. Confirm availability status as distribution channels may list discontinued or obsolete inventory. Ensure the component meets RoHS compliance requirements if applicable to the design. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit parts.

Selection Notes

Select this component for high-frequency copper interconnects requiring automatic equalization without manual tuning. Ensure the application operates within the specified 0°C to +85°C temperature range. Verify that the system voltage matches the +3.3V requirement. Consider the TQFP-EP package for thermal management and board space constraints. Check interface compatibility with CML signaling standards.

Part Context

The MAX3800 series integrates both transmitter and receiver functions for copper cable links. The MAX3800UTJ+ variant specifically denotes the package and environmental rating configuration within the broader family. This integration reduces the external component count compared to discrete solutions. The device addresses signal degradation in high-speed serial data transmission over copper media.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify that any substitute maintains the 3.2Gbps data rate capability. Ensure the replacement supports the same +3.3V supply voltage. Confirm that the new component offers comparable equalization depth and jitter performance.