[sdiy] Korg DSS1 DMA oscillators, the old beast!

[Antti Huovilainen]

On Sat, 23 Jan 2010, karl dalen wrote:

> But how did Korg, Emu ,Fairlight do it then?
> The timers run at max 64khz so the DMA must run at....???
> Some how the gate arrays must be synced to this clock?

They didn't use oversampled sigma-delta DACs. Upside is that you can do 
truly variable samplerate. Downside is that you will not get nearly as 
much resolution for the same cost, as smooth freq response nor any 
attenuation of the image frequencies past 20 kHz.

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova