Part Number:OMAP-L138
Hi everyone,
I am using OMAPL138LCDK and run the example which locates at "C:\ti\OMAPL138_StarterWare_1_10_04_01\examples\lcdkOMAPL138\mcasp". This is the McASP+AIC3106 example. I compiled the example and ran without any operation systems.
The input was selected linein, and the output was selected as lineout. When the linein was music, I can here the music at output end, but I also found that, the output music contained much noise. When the linein was sine signal, the output was also sine wave, but there was also much noise.
In the picture, the yellow line is the input signal, which is obtained from function generator, the green line is the output signal from AIC3106 lineout. We can see that, there is much noise than the input signal. I doubt there something wrong with the configuration of McASP or AIC3106 DAC output. How do you think? Could you give some advice.