Forum Post: RE: Getting started with the AD9081-FMCA-EBZ on a ZCU102 Hi, thanks for the response. Why am I seeing 140 MHz at the DAC outputs right after the program loads? I looked at the DTS you linked. From what I gather, for the Main Datapath, the interpolation factor is set to 8 and the NCO is set to 1000MHz. For the channelizer path, the interpolation is set to 1, which I take as bypass. Am I understanding this stuff correctly? If yes, then I would think I should see a signal of 1 GHz at the output before I change any of the base band data. Can you please explain?
https://ez.analog.com/fpga/f/q....-a/579791/getting-st