We are using AD9914 with 3GHz single ended Ref clock input, we found multiple spurious at ± mFdesired ± nFsysclk (m and n are integers). We are using transformer at the output for single ended output. We are not using any filter right now at the DAC output. I just want to know the spurious which we are getting are not there in the datasheet, are these spurious graph figure 4, figure 5, figure 6, figure 10 in the datasheet with some kind of filter or without any filter. In the evaluation board schematic there is no filter.