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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
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16 years ago

I understand. My knowledge of PLL's though goes as far as analogue(hence the mention of the analogue equivalent subsystems like NCO & filter etc.).

How does the "basic" DPLL you mentioned differ from the, now seemingly labourous usage of NCO's & such? Another reason I mentioned an NCO is that I was advised (by a microelectronics lover,hence analogue again)that a VCO can output a multiplied version of the locked frequency,which is what I need to do.