<div dir="ltr">Hi Mike,<div><br></div><div><div>A small read error in the initial email.</div><div>I understood DAC in place of ADC.</div><div>Now I understand your application correctly.</div></div><div><br></div><div>regards,</div><div><br></div><div>Vinicius Brazil</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Nov 30, 2016 at 8:36 PM, <span dir="ltr"><<a href="mailto:mskala@ansuz.sooke.bc.ca" target="_blank">mskala@ansuz.sooke.bc.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Wed, 30 Nov 2016, Mike HEQX wrote:<br>
> Yeah, it's more like a player piano so I really only need 61 actual binary<br>
> values. I also need the CV out and it just seems so convenient to pick that<br>
> off of the<br>
><br>
> pot. It looks like the CV will have to generate 64 values at full scale, but<br>
> there will be 3 extra notes on the binary side. That's not ideal in this case.<br>
<br>
</span>If you want the ADC output to have *only* 61 values, just decrease the<br>
maximum voltage on the pot to 61/64 of the ADC's full-scale voltage (for<br>
example, 4.766V if full scale is 5.000V), or increase the full-scale<br>
voltage of the ADC to 64/61 of the pot's maximum voltage (for example,<br>
5.246V if the pot's maximum is 5.000V). Either way, it'd be a good idea<br>
to have a trimmer on the voltage you're fudging, so that you can adjust it<br>
to compensate for stuff like ADC nonlinearity.<br>
<div class="HOEnZb"><div class="h5"><br>
--<br>
Matthew Skala<br>
<a href="mailto:mskala@ansuz.sooke.bc.ca">mskala@ansuz.sooke.bc.ca</a> People before principles.<br>
<a href="http://ansuz.sooke.bc.ca/" rel="noreferrer" target="_blank">http://ansuz.sooke.bc.ca/</a><br>
</div></div></blockquote></div><br></div>