Thu Jan 13 19:17:15 EST 2011
It seems clear that going for full digital calibration gives up on
some nice modulation abilities, unless external control signals are
routed through an equally compensated gain/offset circuit.
What is the cost offset here? One of the following
- Analog one-time calibration (trimpots / component matching)
- Digital trimpots
- Analog multipliers for external controls
It seems expensive. Looks like it's an either/or: stick with
classical manual calibration, or do it digitally but loose analog CV
So I reached the same conclusion as . That's two votes for
simplicity and grit.