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Hello Pawel,
When measuring the LED phase of the data, you are really measuring both the LED data and the ambient data at the same time. Therefore, it is recommended to measure the ambient data directly and subtract it from the data measured during the…
Part Number: AFE4404 Tool/software: Hi everyone,
I'm currently working with the AFE4404 connected to an STM32L471RET6 , and I'm trying to read PPG data using only LED1 and a single photodiode (SD019-141-411-G)
Problem:
The ADC_RDY pin always…
Hi Michael - please excuse the delay as I'm just returning to office from paternity leave.
I found a note in the Revision History (pg. 2) as well as in the Applications Section (pg. 70) which explains that at least 25µs is recommended to improve ambient…
I found the answer from .
AFE4404: AFE4404 PPG output
AFE4404 does not have FIFO. You will need to read the ADC output registers that you pointed out for the PPG data corresponding to the respective LEDs By Praveen Aroul .
Part Number: AFE4404 Hi,
I've started working on evaluating AFE4404 using an external MCU. I wonder if there is a configuration tool that automatically generates all the device registers in a way that can be included in the code (something like an excel…
Part Number: AFE4404 I have a special test mode that is need. It requires that all three LEDs be on at the same time for most all of the Repetition Interval.
The "normal" operational settings are for 100Hz at 1% duty cycle, with typical sequential sampling…
Part Number: AFE4404 Hello there,
We're currently looking at using the AFE4404 to drive an LED for 5us and read back a different wavelength for 10us using a PD. We're specifically looking at the intensity and decay time of the PD reading. Is the AFE4404…
Part Number: AFE4404 Hello, Let me know if you know... Is there a buffer that can store the measured values to a certain extent in the AFE4404? Also, can you tell me the hex that reads the LED and IR? Please help me...
Lina
