Getting an audio sign with a THD < 0.0002% made simple
When you want a really pure sine wave within the audio vary, the circuit in Determine 1 might help. It’s a easy deal: A sine wave with a THD of 1% coming from a operate generator that goes via a trackable low-pass filter, which attenuates the distortion-causing harmonics by an element of 7900 (-78 dB)…