Hi ADI expert
May I know the below spec stated in datasheet stands for the frequency measurement accuracy of ADE7763?
This is the crystal on our eval board 30ppm
If the vdd is modulated with a ac ripple to simulated a power supply with full bridge and a filter cap. in this case 5v + 175mvac 120Hz the cf should not vary more that 0.2%.
this is the AC power supply rejection to cf measurement.
thanks for your reply, on the other hand ,
may I know if there is any spec of the tolerance for the CLKin 3.579545Mhz ? (like within few ppm?)
https://www.analog.com/media/en/technical-documentation/evaluation-documentation/ADE7763EB.pdf pg 12