how to improve Phase lock time

Discussion created by pioneer.liu on Nov 26, 2014
Latest reply on Dec 1, 2014 by rbrennan

enclosed is Schematics of ADF4351.

1. at present ,phase lock time is about 200us, how to improve phase lock time to about 50 us?
   I have not used fast lock configuration in the register, if use it, loop BW increase, spur will be poor, how to solve?

2. we use four ADF4351 in my device,but one lock phase indictor fail,output voltage is 1.6V, what factor affect lock phase indictor?

3.what effect has "phase resync function"  for application?