Emma Frost Posted June 25, 2023 Report Share Posted June 25, 2023 I'm trying to design a pcb that connects the input of the DAC to a nucleo board with an stm32 and the output connected to a RF mixer. I have a 3.3v regulator, 5v regulator, and a 1.8 v regulator. In the below circuit diagram. it looks like the analog and digital power supplies even for the same voltage are different and isolated from each other. Is this a necessity? If so, how can I achieve this on a circuit that has only one input (12V) and I'm using tutuapp vidmate different voltage regulators for different circuit components. Thanks for your input. Quote Link to comment Share on other sites More sharing options...
grayb Posted September 18, 2023 Report Share Posted September 18, 2023 Very interesting post! Quote Link to comment Share on other sites More sharing options...
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