while performing calibration of our custom afe4400 board using Fluke "ProSim SPOT Light SpO2 Pulse Oximeter Analyzer".
The afe4400 register configuration is same as of afe4400spo2_evm. Using this same configuration(Led1,2 = 4mA), the signal strength shown on ProSim is around 30%.
So to improve signal strength(60-70%) we increased the LED1,2 current from 4mA to 10mA . Due to this, RED and IR adc data is saturated.
How to prevent adc saturation while maintaining good signal strength?
What should be the required signal strength ?
