AC Coupling Bypass for High-Speed Digitizing on Virtex-II Pro X FPGAs Application Note (XAPP776) - This application note describes a method for bypassing the AC coupling in Virtex-II Pro X devices. Doing so allows use of the 10 Gb/s RocketIO Multi-Gigabit Transceiver (MGT) in DC-coupled over-sampling applications. The Verilog source code for a lab-tested reference design is available on the Xilinx web site.