I am on a business trip and Saturday I am at W3CCX. I will answer this in detail when I get back. If two days go by (Tuesday), bash me about the head to remind me. It is pretty simple trigonometry for the phase detector. The determination of the "time constants" would require laplace transforms or Z-transforms. I will not do that but give a heuristic explanation and show the bottom line results which consist of "Using this formula for the constants, given your frequency range, and tuning rate requirements, you will get a critically damped PLL".
Bob > Hi Jon, > > I think that Bob N4HY is the guy to answer this. > > 73 de Phil N8VB >
