PGA411-Q1: Exciter signal output waveform distortion problem

Hi 

The exciter signal output waveform of PGA411-Q1 is distorted (not very smooth as below picture).           

Will it lead to inaccurate rotation angle values?           

1) If it does not lead to inaccuracy, why?           

2) If it is inaccurate, is this chip suitable for passenger cars?

Thank you

Jerry