10.7Gbps Adaptive Receive Equalizer

The MAX3805 is designed to provide up to 30in (0.75m) reach on 6-mil differential FR-4 transmission line, or up to 24ft (8m) on RG-188A/U type coaxial cable, for PRBS data from 9.95Gbps to 10.7Gbps. The MAX3805 adaptive equalizer reduces intersymbol interference, resulting in 20ps residual jitter after equalization. An internal feedback network controls the equalizer to automatically match frequency-dependent skin effect and dielectric losses. The MAX3805 provides LVCMOS-compatible output-enable and signal-detect functions.

The MAX3805 has separate supply connections for the internal logic and I/O circuits. This allows the current-mode logic (CML) input and CML output to be connected to isolated supplies for independent DC-coupled interfaces to 1.8V, 2.5V, or 3.3V ICs. The MAX3805 comes in a very small 3mm x 3mm package and consumes only 135mW.

Applications

* High-Speed Signal Distribution * OC-192, 10GbE Serial Modules * OC-192, 10GbE Switches and Routers

* 3mm x 3mm Package

* Spans 30in (0.75m) of 6-mil FR-4

* Spans 24ft (8m) of Coax

* Automatic Receive Equalization to Reduce ISI Caused by Path Losses

* Up to 10.7Gbps NRZ Data Operating Range

* Signal-Detect Output

* Output-Enable Control

* 135mW Power Consumption

* DC-Coupled Input and Output to Terminations as Low as 1.65V

* Differential or Single-Ended Operation

* +3.3V Core Power Supply