DS90UB933-Q1: 1M look around the camera, ESD discharge test problem

Hi Qinzheng,

qinzheng li said:

1; When the contact discharge and air discharge test (4/6KV) is carried out on the screw position of the product, the image will flicker with probability. If the product extension wire is shortened, the probability will be reduced. Do you have any good suggestions?

There are other E2E threads that ask a similar question about improving ESD. I suggest looking at these answers to see if they help: (1) (2)

qinzheng li said:

2: In the failure of the product, through which registers can be determined whether the input is caused or the output is caused by the failure, which can be sent out to know this information?

Do you mean general error checking registers? The 933 has the following error reporting registers you can check: 0x0A, 0x0B, 0x0C. The serializer is only able to detect back channel link errors from the DES.

If you have paired it with 934, the following registers can be checked on the 934: 0x4D, 04E, 0x55, and 0x56. The DES can detect forward channel errors on the link.

qinzheng li said:

4,933 Whether the indicator requirements of signal insertion loss and return loss can be provided

What do you mean by indicator requirements? Are you asking to receive a copy of the channel specifications (IL/RL requirements) of the FPD-Link system? You can reach out to your local TI sales representative to get this document.

Regards,

Cindy