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…
Hello,
Follow the guidelines mentioned in the FAQs #7 and 9 in the below link for sign of life and board bring up.
https://e2e.ti.com/support/data-converters/f/73/t/369445
Please verify if the written registers are read back correctly.
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: 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: 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…
Part Number: AFE4490 It is mentioned in the datasheet, 3 to 5.25V can be used for LED_DRV_SUP and TX_CTRL_SUP.
Earlier design, we used 5V for these rails and it was proven and worked well.
Now we would like to operate these rails in 3.3V voltage level…
Part Number: AFE4490 Hi, team:
I noticed in datasheet it described “Time between both supplies stabilizing and high-going edge of RESET >100ms “, I hope to know is this a condition that T2 must meet or it is a suggestion?could you help explain the…
Part Number: AFE4490 Hi Experts,
Our customer is currently tasked with deploying the AFE4490 GUI and drivers package to a number of machines.
He has found the silent install switches required for the main setup.exe but what he is finding is the Python…
Part Number: AFE4490 使用AFE4490黑暗环境下光电二极管探测前四个寄存器得到的数据在-0.6左右波动是正常现象吗?将光电二极管换成电阻也是同样的现象,都在-0.6V。当逐渐增大LED电流时,输出结果线性上移,但是上移到+1.2之后,继续增大LED电流,输出数据为负,之后按此操作,输出结果依旧线性上移,ADC输出到达最大值之后不应该饱和吗,为什么会回到最低值?