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sample rate on FMCDAQ2 board

Question asked by stevereine Employee on Sep 18, 2017
Latest reply on Sep 18, 2017 by stevereine

My understanding from all of the documentation of the FMCDAQ2 board is that the default (hardware and software) is for the AD9144 DAC on the board to be sampling at 1GSPS. However, I have it set up right now, connected to a spectrum analyzer (see attached picture), and what I have is clearly a DAC sampling at 500MSPS, with interpolation filtering disabled. Everything is default, I just ran it as is, and the software as well. Is there something I'm misunderstanding or is the default clock for the DAC on this board running at 500MHz, not 1GHz. 

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