3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver

The MAX3802 has four independent adaptive cable equalizers and cable drivers on a single chip. It is designed for coaxial and twin-axial cable point-to-point scrambled-data communication applications. The driver features differential current-mode logic (CML) inputs and outputs. The equalizer includes differential CML data inputs and outputs and a TTL loss-of-signal (active-low LOS) output.

The adaptive cable equalizer can equalize differential or single-ended signals at data rates up to 3.2Gbps. It automatically adjusts to attenuation caused by skin-effect losses of 30dB at 1.6GHz. The equalizer effectively extends the usable length of copper cable in high-frequency interconnect applications.

Applications

* Backplane and Twin-Axial Cable Interconnects * Category 5 UTP-Based Systems * High-Speed Links in Communications and Data Systems

* Single 3.3V Operation

* Four Independent Equalizers and Drivers

* 725mW at 3.3V Typical Power Dissipation

* Data Rates Up to 3.2Gbps

* Equalizer Automatically Adjusts for Different Cable Lengths

* 0 to 30dB Equalization at 1.6GHz (3.2Gbps)

* Loss-of-Signal (active-low LOS) Indicator

* On-Chip Input and Output Terminations

* Low External Component Count

* 0°C to +85°C Operating Temperature Range

* ESD Protection on Cable Inputs and Outputs