New ContributorI would like to know, in the Arria 10 GX, what is the RX transceiver max allowed intra-differential pair skew.
If it is rate-dependent (as likely is) please let me know all the characterized values.
Regular ContributorHi,
Altera does not publish any numbers for the Rx intra-pair skew. We generally recommend to follow the layout guidelines, perform SI simulations to check for the eye opening, BER failure etc.
In my opinion, it is a function of data rate and board level parameters. As a general practice, people generally follow below rule:
For <= 6 Gbps, <= 10ps
For >10 Gbps, <= 3ps to 5ps
Regards
