Currently I am working on a small project using a Max10 FPGA from Intel.
I know about decoupling IC using a capacitor in parallel and a ferrite in series. This works for a small amount of VCC pins. But the FPGA IC has multiple VCC, VCCA and VCCIO pins. Which of the following ciruit ways would be the best to go with?
- Use one ferrite for all pins and connect a capacitor after the ferrite to each pin.
- Use three ferrites. One for VCC, one for VCCA and one for VCCIO. Connect a capacitor after the ferrite to each pin.
- Use bypass capacitors only connected between VCC near the pin and GND.
Currently I would use the second solution, but I am not really sure.