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Altera_Forum
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16 years ago

PLL megacore probs.build my own??

Hi all, I want to implement a PLL that will lock onto & track an incoming signal of about 30KHz and output a multiple of that locked frequency. I tried using Quartus's PLL megacore function but...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

But the phase accumulator is given by the megafunction or can alternatively be calculated using the given equations in the user guide. This phase accumulator is then an input to the NCO in order to generate a sinusoid at my required frequency. This output sinusoid (well actually what I need is a clock, but I can hardlimit the sinusoid to get that) is what phase detector (XOR) needs, right?