I am writing to the ADF4372 registers through the SPI connections and using SPI stream mode using python. I followed the initialization sequence that is stated out in the data sheet, and when the board turns on, it works great, but I cannot get it to turn on most of the time. When I attach the ADF4372 to the 6V power source and turn the switch on, I am pulling 12 mA of current and when I run my code, the current does not change, and the spectrum analyzer shows no signal is being output. Then sometimes after I go and start working on another project, I will come back, and the board is all of a sudden pulling 230 mA and when I run the code it goes up to about 360 mA and the output on the spectrum analyzer is exactly what I expect it to be. Could anyone provide some information as to why it will randomly turn on sometimes, but it won't turn on right away. The period of waiting until it turns on varies greatly.
