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JIYEON
JIYEON
Visitor II
May 30, 2022
Solved

ODR deviation of lsm6dsox

Hello,

​

lsm6dsox is configured to 1667Hz ODR.

And I measured 'data ready interrupt' interval of 9 sensors.

It was between 1629.69 and 1683.57Hz.

I wonder if there is acceptable deviation criteria?

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    Eleon BORLINI
    Eleon BORLINIBest answer
    ST Employee
    June 3, 2022

    Hi @Community member​ ,

    Please consider that the actual ODR frequency is a typical value (typ on the datasheet), that can slightly vary from the nominal value.

    In particular, in HP mode the variation among samples can be +-1% typ, while in NM can be about +-2% (data on 100 characterization samples).

    If you want to synchronize on ODR, you have to measure it sample by sample with the DRDY method, as you already correctly did. 

    -Eleon

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    1 reply

    Eleon BORLINI
    Eleon BORLINIBest answer
    ST Employee
    June 3, 2022

    Hi @Community member​ ,

    Please consider that the actual ODR frequency is a typical value (typ on the datasheet), that can slightly vary from the nominal value.

    In particular, in HP mode the variation among samples can be +-1% typ, while in NM can be about +-2% (data on 100 characterization samples).

    If you want to synchronize on ODR, you have to measure it sample by sample with the DRDY method, as you already correctly did. 

    -Eleon

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