Honored Contributor
Honored ContributorI agree with Jake that Cyclone III is the best choice for that application. I think that you can go directly with a single PCB which includes both the ADC and the FPGA, without complicating your project with two separate boards.
Be careful about the PCB design recommendations from both the FPGA handbook and the ADC datasheet. Typically you will have to care about the 100MHz clock trace, keep it as short as possible between the two chips. Another typical issue of these kind of applications is the analogue ground and digital ground separation in order to make the analogue ground insensitive to the switching noise coming from the digital ground. The connection point between the two grounds may be under the ADC if it is the only mixed-signal chip, otherwise the optimal connection point depends on how many mixed-signal ICs are in your design and their location on the board. As previously suggested, PCB design is a complex topic and should be addressed by the aid of a reliable book. Cheers OD
