AnsweredAssumed Answered

AD9910 PLL issue

Question asked by parthivms on Apr 13, 2015
Latest reply on Apr 20, 2015 by mcee



I am using AD9910 Evaluation Board and my external clock frequency is 1 GHz. I can generate single tone signal by writing values to profile 0 (0x0E) register. When I try to enable internal PLL I am unable to do it. I also tried to disable SYNC_CLK but I failed. I do not understand what is the problem? I am able to write to Profile 0 register but unable to configure PLL registers. Register values used are taken from Evaluation Software and are as follows (internal PLL Enabled):