DS90UB953-Q1: FPD-Link III by PoC with interference to result purple frequency

Hello Diamond,

why are you sure the interference is on the Coax Cable?

Which type of Cable are you using?

Is your Coax cable grounded on the Connectors?

Hi Hamzeh

why are you sure the interference is on the Coax Cable? ==> For my test, I used a magnetic component,like engine to approached sensor(with 953)、coax cable(SMA connector) and main board(with 954) . The video has interference when the engine approached. So I assume the interference from coax cable(SMA connector). 

Which type of Cable are you using? ==> as the attached.

Is your Coax cable grounded on the Connectors? ==> Yes, I've checked.

Hi Diamond,

Can you try a different cable from different manufacturer and test.

Also please try shorter/ longer cable.

Hi Hamzeh

I have try another cable, but the interference still exist. In the good way, it becomes slight.

So what should I do for next step?

DIAMOND

Hello Diamond,

Can you measure the frequency of the interfering signal?

Also please send me a register dump from the Deserializer before and after the interference so that I can compare them and see if anything related to our DES.

Hi Hamzeh

I'm so sorry that I don't have spectrum to measure the interference frequency. I need to borrow one and give me some time.

DIAMOND