[sdiy] Choosing a DAC

[Tom Wiltshire]

I was just about to suggest exactly the same thing. Everyone is  
banging on about needing a 12-bit DAC as a minimum. This isn't true  
if you're doing the glide function using analogue afterwards, and the  
Pro-One is the living proof!

T.


On 7 Jul 2009, at 05:39, Olav Martin Kvern wrote:

> Hi Stewart,
>
> Do look at the way that Sequential Circuits set up the DAC in the  
> Pro-One. It's an Analog Devices AD558, an 8-bit DAC with an  
> adjustable range. They use it as a 6-bit DAC, and feed it note  
> values from 0 to 63 for just over a 5-octave range at 1 volt per  
> octave. Glide is handled by a separate circuit. It's really pretty  
> brilliant (in my opinion).
>
> With all of the incredible devices that are available today, it's  
> easy to get hung up on DAC accuracy and resolution, but we can  
> still learn a few tricks from circuitry from 1980.
>
> Thanks,
>
> Ole
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