[sdiy] Choosing a DAC

[thx1138]

On 7/6/09 2:57 PM, "Stewart Pye" <stewpye at optusnet.com.au> wrote:

> Hi,
> 
> I'm designing an "analogue" sequencer around an AVR micro and I need to
> choose a DAC for the CV output. It will on only span 5 octaves (0-5V)
> and output only the equally tempered scale. (there will be a separate
> circuit for glide).
> 
> I guess my question really is - how many millivolts can you be off by in
> a 1V/octave system before it becomes noticeable?
> 
> Regards,
> Stewart.
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Hi Stewart,

The ear is sensitive down to around 2 cents. I would use 12-bit dacs at a
minimum. Translation of Millivolts to Cents? I would have to see my
calculator to check.

Regards,

Terry