Forum Discussion

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

DE2-115 PLL dynamic phase doesn't work at low output frequencies?

We use the ALTPLL MegaWizard Plug-in Manager to build the PLL module. We use this PLL module to generate two same frequency output clock. Then, We use the PLL dynamic phase shifting function to adjus...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

It would be interesting to find out if it is the output frequency itself, or the ratio of input/output frequencies. With lower frequencies you may be maxing out the PLL's registers.