Hi, I am using TPA3255EVM in PBTL Configuration(every configuration is set according to the EVM DATASHEET ).
When the input is a fixed value(single-ended input),such as AVDD/2, then I tesed J9 outA ,outB which could see the
sinusoidal disturbance as below:where Channel 2 is outA; Channel 4 is outB
I tested that the input signal didn't have this sinusoidal disturbance.
Also, when using continuous input signal such as sinusoidal signal,Interfering signal of the above frequency will be superimposed in the the output sinusoidal signal .
What's wrong with it?
