The SSM Chip is a SSM2164, A VCA Chip for 4 exponential VCA's. Pretty
high quality.

Doepfer could also just them for morphing or switching or to control
the CV-Resonance.




--- In Doepfer_a100@yahoogroups.com , "Tim Stinchcombe" <timothy@t...>
wrote:

> --- In Doepfer_a100@yahoogroups.com , "waveform100" <googol@g...>
> wrote:
> > I have the impression that the Morphing Filters VCA is pretty

nice

> and
> > clean. I found a good (and expensive) VCA SSM-Chip on the PCB,

but

> I
> > have no idea if thats for the VCA or for the complex filter,
> without
> > following the trace.
> >
> > So, what IC did Doepfer use on that VCA
>
> I don't have that module, but the manual says the "filter design is
> 100% analog (CEM chips)", so the SSM chip *may* be to do with the
> VCA, as there are several dedicated SSM VCA chips. Adding
> complication is that there are dedicated SSM filter chips, e.g.
> SSM2044; and there also VCA chips, e.g. SSM2164, which could be

used

> either to make filters, or be used in the switching between the
> filters. Which SSM chip is it exactly If you tell us the actual

chip

> type, or indeed a complete list of chips in the module (perhaps off-
> list), it would be easier to identify their likely functions!
>
> Tim