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FvM's avatar
FvM
Icon for Super Contributor rankSuper Contributor
1 year ago

Arria 10 IOPLL Dynamic Phase Shift using M-Counter

Hello, we use to perform clock fine tuning with Cyclone designs by applying continuous phase shift to M counter (PLL feedback clock divider). This way the frequency of all PLL output clocks is tune...
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Farabi's avatar
Farabi
Icon for Regular Contributor rankRegular Contributor
1 year ago

Hi Frank,


Let me check with engineering on this. Did the phase shift you performed via M-counter is stable?

How long the PLL can get to Locked status after you performed the phase shift?


regards,

Farabi




  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    1 year ago
    Hi Farabi,
    thanks for your interest.

    PLL is staying locked after M-counter phase shift, Arria 10 IOPLL is behaving the same as Cyclone 10 LP which provides M-counter dynamic phase shift as documented feature.

    Regards
    Frank