Can you share any equations I can use to calculate how long it will take for my clock to acheive lock?
By increasing the PFD frequency. The PFD frequencydetermines the rate at which a comparison is made between the VCO/N and the reference signal. Increasing the PFD frequency increases the update of the charge pump and reduces lock time. It also allows the loop bandwidth to be widened.
Loop bandwidth has a significant effect on the lock time. The wider the loop bandwidth, the faster the lock time, but also the greater the level of spurious components.
Avoid tuning voltages nearing ground or Vp.
Choose plastic capacitors.
Some capacitors exhibit a dielectric memory effect, which can impede lock time. For fast phase locking applications ‘plastic-film’ Panasonic ECHU capacitors are recommended.
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