lipkai
Junior Member level 1
What defines the maximum and minimum input frequency of the PLL?
Is it the VCO tuning range or loop bandwidth or something else?
I read this somewhere (can't remember the exact source):
"The use of higher reference frequency (Fr) offers an opportunity to widen loop bandwidth and achieve significant improvement in switching speed due to faster phase detector frequencies."
I can understand widening the loop bandwidth will increase the switching speed but does having a fast phase detector frequencies have anything to do with the switching speed? Assuming we have a PLL with the same loop bandwidth, does increasing the reference frequency result in faster switching time?
Thanks.
Is it the VCO tuning range or loop bandwidth or something else?
I read this somewhere (can't remember the exact source):
"The use of higher reference frequency (Fr) offers an opportunity to widen loop bandwidth and achieve significant improvement in switching speed due to faster phase detector frequencies."
I can understand widening the loop bandwidth will increase the switching speed but does having a fast phase detector frequencies have anything to do with the switching speed? Assuming we have a PLL with the same loop bandwidth, does increasing the reference frequency result in faster switching time?
Thanks.