Hi,
the issue appeared before, but was never answered. What are the impedance values of the DACs current-outputs, i.e. the PCM1795 and how do they behave over digital-code resp. current-amplitude?
So far I model the DAC outputs with 2k2||22pF in LTSpice. I saw that there´s an IBIS Model of the PCM1795. I had a look at the IBIS-file with an editor, but couldn´t figure out how one could maybe extract the output current behaviour. The outputs seem to be not modelled at all. My idea was to generate a step param List of current values for LTSpice to improve simulation results, because I don´t use OPamps as IVs because of soundquality reasons, but discrete current-conveyor-IVs instead.
Thanks,
Chris
