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<span style="font-family: helvetica; font-size: 14pt;">I'd go with a 15-16 bit external high quality DAC. Internal ones usually aren't high quality. I'm not a fan of using a PWM DAC for something like this. If you want a DAC that doesn't need to be fast or precision then PWM is ok. Also use a precision voltage reference for the DAC reference, not the digital power supply. </span>
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On 12/19/2022 1:55 PM Didier Leplae via Synth-diy <synth-diy@synth-diy.org> wrote:
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If I understand correctly, the ESP32-s3 got rid of DACs but previous versions had them. I was a bit surprised not to find any
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On Dec 19, 2022, at 4:59 PM, The SynthiMuse <synthimuse@gmail.com> wrote:
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Literally today, I just received my first esp32 dev board to build :
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<a href="https://www.google.com/amp/s/www.instructables.com/Extremly-Simple-Oscilloscope-Clock-With-ESP32/%3famp_page=true">https://www.google.com/amp/s/www.instructables.com/Extremly-Simple-Oscilloscope-Clock-With-ESP32/%3famp_page=true</a>
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I was under the impression that the standard esp32 had native DACs.
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Am I wrong?
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Gerry
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On Mon, 19 Dec 2022, 16:14 Didier Leplae via Synth-diy, <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:
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I’m working on developing a quantizer module for eurorack. I made a previous version using a PIC chip with a DAC which I abandoned during the chip shortage.
<br>Now I’m looking at taking up the project again but possibly with an esp32-s3 chip instead. This chip only has PWM, though.
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<br>Question is whether PWM with smoothing circuit is it accurate enough for a quantizer? Does anyone have smoothing circuit to recommend?
<br>Or is a DAC the better option?
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