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dncmrc1's avatar
dncmrc1
Icon for New Contributor rankNew Contributor
2 days ago

Arria 10 GX RX max intra-differential pair skew

I 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....
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Ash_R_Intel's avatar
Ash_R_Intel
Icon for Regular Contributor rankRegular Contributor
2 hours ago

Hi,

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