I'm looking for the lowest cost FPGA family from Intel which still have fast enough LVDS RX channels to handle up to 800MHz DDR bus (up to 1.6 Gb/Sec per data RX lane)?
When i look at "Table 34. High-Speed I/O Specifications for Cyclone V Devices" in Cyclone V Device Datasheet at page 47
The highest clock input frequency for true differential standards is 437.5 which in best case can support data rate up to 875 Mb/Sec in DDR while i'm looking for almost twice that rate.
I see that Arria 10 support up to 1,600 Mb/Sec in DDR mode but these FPGA devices are relatively expensive....