Tim, That was a very nice explanation. I have always considered software PLLs to be a bit of an enigma, though a future project goal of mine is going to require one. In my case, the reference and the incoming signal will both be aprox 50 or 60hz sine waves. For the PFD, I was planning on multiplying them and filtering the result which would be used to drive the NCO. I was wondering if you would you please elaborate a little more on the concept of using the inphase and quadriture outputs and their phase rotation and what this does / how / why it works?
Re: Software PLL (SPLL)
Started by ●February 6, 2006