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Changing profile of AD9914

Question asked by Nje on Aug 19, 2016
Latest reply on Aug 30, 2016 by LouijieC

Hi all,

 

We recently purchased an AD9914 eval board to help generate microwave frequencies for our application. We have been trying to understand how to do profile changes in a triggered way. We would like to change between the 8 programmable profiles of the board. We have an external timing system that would send a trigger signal to an external register to change the profile pins. However, we are running into problems synchronizing the profile change edge with the SYNC_CLK of the board. Is there a way to set up the AD9914 such that the profile will change on the next SYNC_CLK edge? If not, do you have any suggestions on a simple way to create an synchronized (with SYNC_CLK) write signal from an unsynchronized one? In terms of timing jitter we are not too concerned with jitter on the order of a few clock cycles. 

 

Thank you for your help.

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