Forum Post: RE: AIC3106 codec serious problem on OMAP-L137 platform

Hi Jack,

I think you are looking at the out-of-band noise in the scope shot. We do all of our testing with the Audio Precision which is the benchmark for audio testing. We can easily hit the datasheet numbers when set up for testing properly.

Here is an app note that explains out-of-band noise:

http://www.ti.com/lit/an/slaa313/slaa313.pdf