> It would be good to get the interpolation running, both to improve spectral > purity and to put the hardware through its paces before we move on to the > next design revision (I'd love to see synchronisation at max DAC clock > rate).
I agree with @hartytp on this. Pushing digitization artifacts to higher frequencies is really helpful. >> drastically reduce the SAWG digital upconverter resolution to a few >> frequencies (use the other NCOs to for fine tuning). Fine adjustment of SAWG f0 by RTIO and local DSP is the planned path for dynamically compensating for time-variation of the Coherent Paladin laser repetition rate. Could the resolution of the the f0 NCO be defined parametrically? This could enable relatively straightforward switching between faster compile times and finer resolution. > - f_RTIO = 125MHz > - f_DAC = 2GHz > - f_data = 1GSPS (2 x interpolation) These parameters are fine for the UMD-Duke-ARL application set. -Joe _______________________________________________ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
