Noise caused by e-compass ISM303DAC

[mumi98]

I could not find any literature about this so I decided to post on community. When I activate ISM303DAC I experience noise on other parts of the board. At first, I thought this is caused by the communication, but it is not. Also, there is no noise when only the accelerometer is enabled. 

My theory, the noise is caused by the set/reset function...I haven’t been able to prove my theory, yet. I am working on it. 

So, I am asking if anybody experienced the same problem. 

Thanks for the feedback. Your thoughts and comments are welcome.  

[Uwe Bonnes]

Did you try to get a scope probe in it’s sensitivest range near to the ISM303DAC but not in contact? Some kinds of noise should be visible that way.

[Andrew Neil]

Welcome to the forum.

You need to give some more details - please see:

In particular:

• What board is it ?
• If a custom board, you will need to show schematic & layout - and some good, clear photos.
• What is the nature of the “noise” that you see, and how do you observe this “noise” ?