Hi everyone, I do experiment with AFE4400 board made by myself with DCM03 LED/Photodiode sensor.
Below is my register setting:
Register : 0x21 Value: 0x000005 //Ambient DAC 0uA, stage 2 amplify disable, stage 2 gain 0 dB, Cf= 5 pF, Rf= 10k
Register : 0x22 Value: 0x01FFFF //Current for LED = 50mA
Register : 0x23 Value: 0x020100 //H-bridge
It is strange that my collected data seems to be cut-off even though they are still in range of signed 22 bit. You can see below photo to understand more.
Sorry for bad picture. All value of data are negative (<0)
Could you guys help me to solve this problem.
Thank you very much