Part Number: AFE4490 Tool/software: First Here is datasheet to use this case.
www.ti.com/.../afe4490.pdf
What I want to do: I want to set the AFE4490 datasheet Figure 116. LEDCNTRL: LED Control Register (Address = 22h, Reset Value = 0000h) and control…
Part Number: AFE4490
Tool/software:
Is the default or factory value 0000?
Or is it the Reset Value = **** part of the datasheet? please tell me. By the way, with the settings in the datasheet If I accidentally write 1 in a place like the one where Bits…
Part Number: AFE4490 Dear Sir/Madam,
I purchased AFE4490SPO2EVM and tested its SNR. I have questions about this AFE's SNR performance.
I was looking for the SNR measurements in the datasheet, and it seems that SNR was presented as noise-free bits…
Part Number: AFE4490 Hello TI team,
We are currently developing an SpO2 device using the AFE4490 with an STM32 MCU. We have conducted tests using a simulator and a reference SpO2 machine.
During our tests, we observed discrepancies in the data acquisition…
Part Number: AFE4490 Dear Expert
The AFE4490 circuit is designed according to TI's recommended circuit and works normally in indoor environments; 1. Place the AFE4490 module board into the freezer (at a temperature of about 3 degrees Celsius) (the…
Part Number: AFE4490 Hello, I have a question about the bypass mode. I see that bypass is suitable for bypassing normal procedures. If I don’t need it, can I connect it empty. Below is my circuit diagram,Could you please check it out for me?
Part Number: AFE4490 Other Parts Discussed in Thread: AFE4403 I been doing data conversion with the goal of SpO2 from the link provided below:
https://www.ti.com/lit/an/slaa655/slaa655.pdf
My values have been varying depending on the gains of both the…
Part Number: AFE4490SPO2EVM To my understanding, calculating SpO2 is given by the general formula of % SpO2 = 110 – 25 × R, where R = (ACrms of Red / DC of Red) / (ACrms of IR / DC of IR). I have been trying to figure out the SpO2 but have…
