The fractional N frequency synthesizer 1 wherein the coarse tuning logic further comprises tuning logic adapted to compare {TAIL ~ a frequency} of {HEAD ~ the divided reference signal} and a frequency of the divided CO signal and effectuate coarse tuning of the CO based on the comparison 
The fractional N frequency synthesizer 1 wherein the coarse tuning logic further comprises tuning logic adapted to compare { TAIL ~ a frequency } of { HEAD ~ the divided reference signal } and a frequency of the divided CO signal and effectuate coarse tuning of the CO based on the comparison
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH