MAX3986 1Gbps to 10.3Gbps Linear Equalizer   Description The MAX3986 is a 4-channel low-power linear equalizer optimized for use up to 10.3Gbps that compensates for losses encountered with FR-4 stripline and twin-ax cable. This linear equalizer is intended for use with decision- feedback equalizers (DFEs) integrated into ASICs as well as other applications where increased margin is needed rather than full signal regeneration. DFEs can typically handle 20dB of channel loss at a frequency half the bit rate, assuming the channel is not degraded by reflections and crosstalk. The extended linear range of the MAX3986 preserves the essential signal characteristics needed for optimum DFE performance. The analog equalization of the MAX3986 adds to the effectiveness of the DFE. This increases margin to tolerate environmental and manufacturing variations or to increase the length of the transmission line. The MAX3986 operates from a single 3.3V supply and is housed in a lead-free, 5mm x 7mm TQFN package.   Key Features

Increases Margin of Decision-Feedback Equalizers

Compatible with OOB Signals

Extends Transmission Line Length

Coding Independent, 8b/10b or Scrambled

4 Channels per Device

Analog Equalization

Better Than 18dB Return Loss at 5.15GHz

33mA per Channel Supply Current

Single 3.3V Supply

5mm x 7mm, Lead-Free TQFN Package

Applications/Uses
 6Gbps SAS
 8.5Gbps Fibre Channel
 Active Copper Cable Assemblies
 DDR, 6.25Gbps IEEE 802.3ae XAUI
 High-Speed Backplanes
 OIF-CEI-6G
 QDR, 10.0Gbps InfiniBandSM
 Serial 10.3Gbps Ethernet