Cyclone IV as transceiver using SMA

Don't write the code so fast if you begin!

Do you use VHDL or Verilog?

Do you know the exact FPGA name? (you will need it in Quartus)

Read documentation about Cyclone IV GX and about tranceiver in FPGA Board.

I know what you are doing: I use the Stratix V GX with a transceiver for Ethernet 10Gbps and I work with SMA. But I use another protocol, unavailable on Cyclone IV.

You must design a system which manage the protocol. I advise you to use the IP of Altera, and to search some example. Which version of Quartus do you have?

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(but i want to start with a transmission of 2,5 Gbit/s)

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PCIe Gen1 is what you need, according to this page http://www.altera.com/devices/fpga/cyclone-iv/transceivers/cyiv-transceivers.html