I'm doing an audio project in which it would be convenient to work with as little cables as possible, and as such I started wondering if it would be possible to power the Teensy from 48V phantom power directly over the audio line?
In the diagram below a made a rough sketch of what it could look like in my, inexperienced, mind. To make a balanced signal, I use a simple trick where a mono signal send directly to the L channel of the DAC, and inverted to the R channel of the DAC to make a balanced signal. There should be some caps added to stabilize power, but I omitted those for simplicity sake. The Step-Down convertor should work in a frequency plenty above the audible range to prevent unwanted noise.
Would this work? And as a follow up question, could this reduces issues with ground loops?
Thanks!
In the diagram below a made a rough sketch of what it could look like in my, inexperienced, mind. To make a balanced signal, I use a simple trick where a mono signal send directly to the L channel of the DAC, and inverted to the R channel of the DAC to make a balanced signal. There should be some caps added to stabilize power, but I omitted those for simplicity sake. The Step-Down convertor should work in a frequency plenty above the audible range to prevent unwanted noise.
Would this work? And as a follow up question, could this reduces issues with ground loops?
Thanks!