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I am trying to create a simple R2R DAC, maybe 8-16 bits.

I want to be able to that type of DAC inline to a headphone line.

Since the an 8 bit R2R DAC will need 8 pins, how exactly do I wire up a TRS connector to that?

Do I have to put an analog to digital converter inline first?

3.5mm TRS analog audio player output -> [create analog to digital output] -> [apply the digital signal to my 8bit DAC] -> output to 3.5mm TRS analog

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  • $\begingroup$ The electrical stack may be a better place for your question , also people on here choose what they reply to and there is no minimum response time : have patience , a person who could reply may be in a different time zone and sleeping , eating or enjoying life... $\endgroup$ – Solar Mike Dec 19 '17 at 7:22
  • $\begingroup$ There is too much hand waving to understand what you are really trying to do. Closing as unclear. Also, have you even thought about the error budget for just a 8 bit D/A, let alone 16 bit? $\endgroup$ – Olin Lathrop Dec 19 '17 at 12:51
  • $\begingroup$ I just noticed you answered your own question. I haven't read it, but apparently we're done here anyway. $\endgroup$ – Olin Lathrop Dec 19 '17 at 12:52
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    $\begingroup$ Your question can match better the topic of electronics.stackexchange.com . $\endgroup$ – peterh Dec 19 '17 at 13:24
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Okay, I will go ahead and answer my own question.

Since I'll have to deal with an analog signal anyways, coming from the audio output of a mobile device.

I'll need an ADC [analog to digital converter] then I'll match that up with a DAC [digital to analog converter] and send that out a TRS plug.

This thing will need it's own power supply for it all but I think it might be a fun project to do.

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