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AFE4403EVM: Calculating SpO2 from data

Part Number: AFE4403EVM

We recently purchased an AFE4403EVM, however we do not know how to interpret the data we are given from the analysis to determine the SpO2 value.

Which formulas can be used to calculate the SpO2 from the given data and which data should we be looking at, specifically we are wanting to use the mean v, vrms, vpp and the corresponding led combinations.

Thank you!