Post #2791336
2026-05-15 08:59 UTC
@krnlg@mastodon.social the sub-heading says they control temperature using the fans in order to phase shift the clock. They measure and lock against an externally supplied, very stable reference clock. Their application is an existing board that has a clock tree that provides some phase/frequency control, but that control isn’t as fine grained.
Replies (1)
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@jaseg@chaos.social 2026-05-15 09:01
@krnlg@mastodon.social Here’s the presentation where that is from. In that presentation they introduce a new clocking architecture for future systems that allows fine phase control in a more direct way by chaining two fractional-N PLLs: https://indico.cern.ch/event/1606914/contributions/6771542/attachments/3178052/5652347/2025.11.19_SAMBA_HPTD.pdf