How to view a output of a class-d amplifier as a sinuisoidal on the oscilloscope

[chronotee]

Hi,

I had an experiment with the audio amplifier LM48411. I am able to get the PWM output result. Now I had a question, is/are there any way/method that I can do to convert/show the output waveform as a sinusoidal waveform?



Please advice



Regards

Seng Huat

 

[crutschow]

Simply run it through a low-pass RC filter with a corner frequency slightly above the highest audio frequency of interest.