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Altera_Forum's avatar
Altera_Forum
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10 years ago

altpll "loop filter resistance" parameter: resistance to filtercap or to charge pump?

Hi, the altpll reconfiguration interface has a parameter called "loop filter resistance". Is this the resistance imposed between the charge pump and the VCO control node, or is it the resistanc...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

It would be R1. See attached .jpg. You would think this would be in the altpll user guide, but alas it is not.