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ADF4212L power up sequence through rate 2

Thread Summary

The user's customers are experiencing issues with powering on the ADF4212L. The recommended solution is to wait for the supply voltages (VDD1, VDD2, VP1, VP2) to settle after power-up, then clear Register 0 and write 0x2 to Register 2 before applying the current settings. No specific waiting time is mentioned, but the supplies should be stable before proceeding with register writes.
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My customers have problems with powering on the ADF4212L.
We found the following thread looking for an answer.

 

ADF4212L power up sequence through rate

https://ez.analog.com/thread/13793

 


The thread says "As a first-hand advice, i would like to ask you to clear all bits (programm to 0) in Register 0 (IF R counter latch) and write 0x2 to Register 2 (RF R counter latch) after the part is powered up, and only after that is done to write all you register with current settings. "
This was a wonderful answer for my customers.

So please allow me small questions.
Does the MPU require waiting time when executing the above command?

If necessary, how long is the time?

Best regards

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