I have a question ADE7880 Period Measurement.
How many percent the precision of the frequency is an IC element(ADE7880) ?
The ADE7880 provides the period measurement of the line inthe voltage channel(register :APRIOD,BPRIOS,CPRIOD).When a frequency of the measurement voltage was calculated by from this arithmetic expression.
I'd like to tell me the precision.
The PERIOD register is accurate to +/-1LSB, this means that at 50Hz the error is about +/-0.02% and at 60Hz the error is about +/-0.023%. Please refer to Page 34 of the ADE7880 data sheet under the "Period Measurement" section.
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