Feature Upgrade Request: In DTT, Ability to Plot Cumulative PEAK instead of Cumulative RMS in "Power Spectrum" Group
Often, when tuning excitation templates, we plot the amplitude spectral density (incorrectly labeled as "power spectrum") DAC output drive signals, and also (because it's the only thing we have) the "downward" cumulative RMS (the other choice in the "power spectrum group, labeled simply "(RMS)"). ("downward" meaning that the value of the trace at frequency, f, is the RMS with the lower and upper frequency bounds of the mean are f and infinity, respectively.)
However, the value important to the DAC is when it saturates, i.e. the PEAK = RMS*sqrt(2) value in any given bin.
While I acknowledge that, I could stare at the graph and mentally multiply by sqrt(2), this seems like a trivial enough calculation and option to add -- and this way, we could compare the cumulative PEAK directly to the DAC saturation limit, be it 2^15 for a 16-bit DAC, 2^17 for an 18-bit DAC, or 2^19 for a 20-bit DAC, etc.
(That being said, it still won't be exactly the right value, because of the ~1 dB of ripple above unity in user model to IOP up sampling, digital AI filter... but that's another discussion for another time.)