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Gyro filter delay

Question asked by BillW on Nov 29, 2012
Latest reply on Nov 29, 2012 by NevadaMark

I am trying to calculate how much data delay exists in the 16265 and 16384.  I'm talking about the time delay between the physical gyro rotation and the data showing in the GYRO_OUT register. I couldn't find anything in the datasheets or in EngineerZone.

 

I'm thinking it is some negligible amount to get through the initial analog response and analog filtering.   So the "gross" delay is all in the digital area.  I calculate the digital delay = total taps * SMPL_PRD sample rate.

total taps is 1 + (2 * taps set by SENS_AVG).  For example, if SENS_AVG[2:0] is 4, total taps is 33.

Am I correct here?

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