Category: Specifications
tool:-
Device: MAX®10


The Pin Connection Guidelines recommend inserting ferrite beads where required.
Even if the PLL is not used, it is recommended to put it in so that it can be handled in case there is a change in the future.

Intel® MAX® 10 FPGA Device Family Pin Connection Guidelines
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/max-10/pcg-01018.pdf
(search for Notes 5 or ferrite bead)

See below for information on ferrite beads.
https://www.intel.co.jp/content/dam/altera-www/global/ja_JP/pdfs/literature/an/an574_j.pdf
https://www.intel.co.jp/content/dam/altera-www/global/ja_JP/pdfs/literature/an/an583_j.pdf