Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

PLL issue

I am using cyclone IV E PLL to generate 2.5MHZ, 10MHZ and 40MHZ.

Although all output clocks are good, they are not locked between them.

Is there any settings I can modify to let them locked between them.

Many thanks.

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    What exactly do you mean by "locked between them"? If they are coming from the same PLL they will be in phase, if this is what you are looking after.