Question 1: I am using the BMI270 in a drone application. I am sampling the gyro at 3.2kHz ODR in normal mode. Can I confirm that the low pass filter cutoff is 751Hz in this case?
Question 2: If I set gyr_bwp to OSR2 mode at 3.2kHz ODR what would the lowpass filter cutoff be?
Question 3: If I set gyr_bwp to OSR4 mode at 3.2kHz ODR what would the lowpass filter cutoff be?
Question 4: Can you confirm the type and order of the lowpass filter used in the BMI270 Gyro?
Thank you for the prompt reply!
In theory BMI270 gyro 3dB cutoff frequency is 751Hz at 3200Hz ODR normal mode and 375Hz at OSR2 mode, 187.5Hz at OSR4 mode. But in reality the results from your experiments are close enough due to the internal signal path and signal conditioning. Sorry that I cannot give you the exact 3dB cutoff frequency numbers at OSR2 and OSR4 mode because this information requires the NDA.