As noted above, {HEAD ~ these abruptly operated current switches} may introduce {TAIL ~ noise components} that affect operation of the PLL, especially at higher frequencies 
introduce
As noted above , { HEAD ~ these abruptly operated current switches } may introduce { TAIL ~ noise components } that affect operation of the PLL , especially at higher frequencies
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH