[sdiy] Cyclone SID

[Peter Sahmel]

http://www.retrothing.com/2006/01/a_low_cost_moog.html

Does anyone know if moog is really using FPAAs?

On 3/5/06, Rainer Buchty <rainer at buchty.net> wrote:
>
> >This is probably way off, but I read in some electronics magazine that
> >FPGA-like programmable _analog_ chips (and hybrid chips) are getting
> >more and more powerful these days (and they use them for stuff like
> >mobile communications equipment or something so they could even be
> >cheap). I've never seen any, but perhaps something like that could be
> >used for a more true SID design?
>
> I wouldn't put too much hope into FPAAs or how they are called today.
>
> The nice thing of CPLDs and FPGAs is that you can put arbitrary digital
> functions into it -- and a gazillion of them which would otherwise fill
> an entire cabinet of e.g. 74xx/40xx.
>
> The FPAAs I've seen so far do not live up to those expectations but
> remind more of a more or less configurable gain cell. Also, you will
> most likely always need external components as tunable Cs and Rs
> (especially over several orders or magnitue) are pretty much impossible
> in silicon (or at least prohibitively expensive).
>
> However, I'd love to stand corrected here...
>
> Rainer
>
>
>
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