AFE4300: AFE4300 IQ mode to test impedance

Hello TI team

I am using AFE4300 to create an impedance testing motherboard, and the hardware has been referenced in the AFE4300 Development Guide. The circuit should be fine; The current issue I am facing is that by configuring the AFE4300 register and using IQ mode to test impedance, I have read the I value, Q value, and impedance value that are constantly changing. How should I proceed to the next step of calculating the impedance of the resistor I am connected to?

Amy Luo：

Hi Jason,

Welcome to the E2EChina forum. 

Since AFE4300 is an NDA product and is not supported in public forum, please send an English email to biosensing_afe-support@list.ti.com for technical support. This product is supported by a team of engineers in the United States and requires communication in English.

,

Jason Chen：

I have sent an email to this mailbox on November 2nd, but did not receive a reply.

,

Amy Luo：

Hi Jason,

I'm sorry to let you wait so long and no one replies to your email. Now I suggest that you post your question on the E2E Technical Forum (link:https://e2e.ti.com/support/interface-group/interface/f/interface-forum ) and state that you have sent this question to the above email and have not received a response, and that E2E Technical Forum engineers should contact you by email. 

Thanks,

Amy