Editing Phase-locked loop (section)

===Performance parameters===
{{main|Phase-locked loop ranges}}
*Type and order.
*[[Pll ranges|Frequency ranges]]: hold-in range (tracking range), pull-in range (capture range, acquisition range), lock-in range.<ref name=Leonov2015>{{cite journal | last1=Leonov | first1=G. A. | last2=Kuznetsov | first2=N. V. | last3=Yuldashev | first3=M. V. | last4=Yuldashev | first4=R. V. | title=Hold-in, pull-in, and lock-in ranges of PLL circuits: rigorous mathematical definitions and limitations of classical theory. | journal=IEEE Transactions on Circuits and Systems I: Regular Papers | publisher=IEEE | volume=62 | issue=10 | pages=2454–2464 | doi=10.1109/TCSI.2015.2476295 |arxiv=1505.04262 | year=2015 | s2cid=12292968 }}</ref> See also [[Floyd M. Gardner#Gardner's problem on the lock-in range|Gardner's problem on the lock-in range]], [[William F. Egan#Egan's conjecture on the pull-in range of type II APLL|Egan's conjecture on the pull-in range of type II APLL]], [[Andrew Viterbi#Viterbi's problem on the coincidence of PLL ranges|Viterbi's problem on the PLL ranges coincidence]].
*Loop bandwidth: Defining the speed of the control loop.
*Transient response: Like overshoot and settling time to a certain accuracy (like 50 ppm).
*Steady-state errors: Like remaining phase or timing error.
*Output spectrum purity: Like sidebands generated from a certain VCO tuning voltage ripple.
*Phase-noise: Defined by noise energy in a certain frequency band (like 10&nbsp;kHz offset from carrier). Highly dependent on VCO phase-noise, PLL bandwidth, etc.
*General parameters: Such as power consumption, supply voltage range, output amplitude, etc.