curtis newton
Member
Hello,
- does the AGND also need to be connected to the output of my audio applicance when using one of the DAC of the teensy
( or is it only a AGND for ADC input ports ? so my applicange output connector should be connected to GND instead? )
- can that AGND be connected to the general GND of my applicance or better not ?
I guess that the top left 47k cap is used to maintain a default input to 0V and the 10µF at the top is to decouple DC (not sure)
- it seems like 10k+2.2k create 0.595V as a midpoint ? so I have to set the VREF to internal 1.1V ?
- so then what does 10µF+47k (at the right) do ? it looks like some sort of filter
thanks
- does the AGND also need to be connected to the output of my audio applicance when using one of the DAC of the teensy
( or is it only a AGND for ADC input ports ? so my applicange output connector should be connected to GND instead? )
- can that AGND be connected to the general GND of my applicance or better not ?
I guess that the top left 47k cap is used to maintain a default input to 0V and the 10µF at the top is to decouple DC (not sure)
- it seems like 10k+2.2k create 0.595V as a midpoint ? so I have to set the VREF to internal 1.1V ?
- so then what does 10µF+47k (at the right) do ? it looks like some sort of filter
thanks