As shown in FIG 2, {HEAD ~ the loop filter} 22 is located electrically between the phase detector 24 of {TAIL ~ the PLL} 20 and the VCO 18 
As shown in FIG 2 , { HEAD ~ the loop filter } 22 is located electrically between the phase detector 24 of { TAIL ~ the PLL } 20 and the VCO 18
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH