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2order type 2 pll Phase error

Question asked by Maxwell22 on May 30, 2016
Latest reply on Jun 20, 2016 by rbrennan

Hello, I am using  two PLLs  2 order type 2 with the same reference. The output of both signals (same frequency) are synchronized with the same phase as expected , but when I am using similar circuit with  3 VCO's, switch , amplifier and power divider  connected serieal  to the loop filter  (forward path) there is an arbitrary phase error between the two output signals, each time the frequency is changed .

any idea why it happen?

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