I have always had a soft spot for phase-locked loops – at least, I have since I first found out what they were. What I like about them is that they servo into the best answer for a given situation – ...
PLLs (phase-locked loops) are among the most commontypes of analog/mixed-signal circuits on today’sSOC (system-on-chip) ICs. PLLs are essential companionsto the digital-logic circuits and processorson ...