I am David Guo from CAST,Beijing. One question about AD9910's PSK Modulation.
I used AD9910EVB to do the experiment, see below is the EVB Configuration: the SYSCLK is 100MHz, and let Profile0 output 1MHz, 0 degree phase signal, let Profile1 output 1MHz,180 degree Phase Signal.
By controlling the hardware Profile0 Pin, we can change the output signal's phase. Below is the correct output signal:
But I also often get the signal as the attached shown: seems the phase isn't 180 degree.
Not sure what the reason is. Thanks!!!!