[sdiy] Fun things to do with a half SSM2164?

[Aaron Lanterman]

On Jun 12, 2010, at 1:41 PM, Olivier Gillet wrote:

> The board I'm working on at the moment uses a SSM2044 as a filter, and
> the final VCA is a "linearized" SSM2164. So I have two log gain cells
> available for an additional CV-controlled processing to be determined.
> I don't want to add a lot of parts, at most a dual op-amp. What would
> you suggest?

Why are you using the linearized SSM2164? If you're driving it with an envelope from your microcontroller it would be really natural to drive it with a linear ramp and then get exponential VCA behavior.

In any case, to answer your actual question, a simple single-pole *highpass* filter, like on the Jupiter-8, might be fun; that would take up one gain cell.

- Aaron