[sdiy] integrator / capacitor leakage

[JH.]

> > No. But I want to get 20kHz from 1mA maximum (to keep tracking
> > errors reasonable), and I want to get down to 1/30s without switching
> > capacitor values. Even that is no problem.
> > But I want high waveform precision over the whole frequency range.
> > Doing it with two integrators and/or shaping sin + cos, the  
> > amplitude error
> > should be better than 1%, the phase error should be better than
> > 1 deg, and offset should be less than 5mV.
> > Now suddenly it *is* demanding.
> >
> 
> It's called a Digital Signal Processor. An analog solution will be  
> very frustrating.

(;->)

JH.