So i need to design DDR4 and 10 Gbps SERDES link . do i need to use rounded traces or 45 deg traces are still ok for my speeds? Also is there a way to determine if a SERDES link is to long as in the traces are too long ?
Sam , 01-10-2026, 03:42 PM
Refer to the manufacturer's recommendations
QDrives , 01-10-2026, 05:16 PM
45 degree is still ok.Too long depends on the losses. That depends on the material used.
Sniper2 , 01-11-2026, 03:05 PM
at what frequency rounding does start to be a requirement?
QDrives , 01-11-2026, 04:43 PM
Juriy Shlepnev made a LinkedIn post on this once. From what I recall rounded traces were no benefit up to 25GHz, sometimes even worse then 45° angles.
Sniper2 , 01-11-2026, 06:17 PM
a no not even close to my 10GHz, only aestetics are better but harder to edit from what i see
Sniper2 , 01-11-2026, 06:17 PM
THX
Robert Feranec , 01-12-2026, 03:51 PM
I have done a number of videos about routing very high speed signals, you can have a look here: https://youtu.be/ERvQeln9l-g?si=Xp21bJn-Uqr3cC_p
Robert Feranec , 01-12-2026, 03:52 PM
this may also help: https://youtu.be/SM76F537vjc?si=zVjEaMulo8mz4LFS
Sniper2 , 01-12-2026, 04:12 PM
THX
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