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AFE4900: Asking for help about TI's PPG AFE (AFE4900)

Hyeon jun LEE
Prodigy 10 points
Part Number: AFE4900

Hi


I'm an eng'r in Samsung who are interesting in PPG in mobile devices, and sending you an email as I have a request.

We are working on putting PPG functionality on mobile and are interested in TI's PPG AFE.


I would like to ask how TI defines PPG SNR in human TEST

1) How to define "Signal"

2) How to define "Noise"


Thank you