Honored Contributor
Honored ContributorWhat device are you talking to that's running that fast? I pretty much never see any devices that go above 1Gbps(maybe 1.25 Gbps) for LVDS, and the DACs and ADCs that did do that are all moving to JESD204B and multi-gigabit transceivers, as LVDS just couldn't handle it. FPGAs top out at 1.6Gbps, but that uses some special stuff on the receiver, like Dynamic Phase Alignment. I can't imagine a device with a spec that requires 2.7Gbps LVDS.
If you're talking FPGA to FPGA, make it wider(you didn't say how wide the bus is, so if it's 1 bit then definitely make it wider). Heck, make it a 10-bit bus and just send it all in paralllel. If you need gigabit transceivers, you're going to need a protocol, but whatever you're talking to should already have that defined. http://www.altera.com/devices/fpga/arria-fpgas/arria-v/transceivers/arrv-transceivers.html http://www.altera.com/literature/hb/arria-v/av_5v3.pdf
