The noise is quite audible and makes it unusable as a synth oscillator, the scope images don't really show it well.
As for your judgement on my scope, you'll have to be a bit more specific about what you want to see.
My frequencies are...
I do have SCK connected to ground and VIN is 3.3V from the the Teensy.
Here are images of the square (no pulse width) and the sawtooth with the pulse set to about zero.
How exactly do I band limit? I see it mentioned all over but without enough...
I have been trying to clean up the output coming from a generic PCM5102A chipset. When I output a triangle/saw the wave is mostly noise free, except near a pulse width approaching zero (sawtooth). The square wave is incredibly noisy with digital...
I am upgrading a simple oscillator project from an Arduino to Teensy 4.1 and saw that the audio library will save me a ton of coding. One key aspect of my project is that it lets you slowly change from a sawtooth wave, to a triangle then to a...