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AMC6821: Accuracy of RPM to digital converter

Part Number: AMC6821

Hi,

I have a query regarding Accuracy of RPM to digital converter that was mentioned in Electrical characteristics section of the AMC6821 datasheet. The datasheet says that the accuracy is min of -6% and max of +7%. Does this value cover the entire accuracy (including Clock frequency error and Clock resolution error) of RPM to digital conversion? or is it just the Accuracy of the 100 KHz clock that was used for RPM measurement. The reason why I'm asking this is that I see the same accuracy value (-6% to +7%) for PWM output frequency as well. So just thought that the accuracy value that was given in both the cases to be the Frequency accuracy of the clock that was used.

Thank you,

Dhanush