[sdiy] Designing Analog ICs, (Doepfer).

[KD KD]

Old thread but apparently Doepfer tried to get OnChip make another run
of the 3394 for the DarkEnergy module single chip synth but was turned
down, perhaps the number of units was to low!?

Tempest uses the same stuff as the other DSI stuff uses.

I wonder if the PA chips was really an new wafer run or just taken from a
existing wafer stock? The PA397 was after all used in the Marion Systems
synths which pre-dates DSI by years.

>> Curtis became OnChip as they moved away from synth oriented designs.

>The implication being OnChip has the base array IP that was used
>to build the CEM devices, and still has the process running to build them.
>The only thing standing in the way of rebuilding new CEM devices is
>a business case.  I doubt OnChip would turn down a viable business
>proposition.  Making a few chips for some sdiyers probably doesn't
>fall in that category. :-p

>Note Dave Smith is buying at least two different parts from OnChip,
>the PA397, and a dual VCA chip.  It'll be interesting to look inside
>some recent designs (Tempest?) and see if there's anything new.

>-Dave