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ADF4351 Lock Time too long

Question asked by sml on Aug 16, 2016
Latest reply on Nov 3, 2016 by sml


I use the ADF4351 to generate 10 MHz spaced frequencies between 800 - 3000 MHz. The device works well but the lock time is too long (about 100 us). As simulated with ADIsimPLL the lock time should be below 20 us, with fast lock enabled and 200 kHz bandwidth. I think there is something wrong with the initialization. I have attached the screenshot of ADF435x software. Please can someone review the settings.

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