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DS90UB936-Q1: hardware and software

Part Number: DS90UB936-Q1


Hi TI expert,

Fault symptoms:
 streaming media rearview mirror in operation will occasionally flower screen and blue screen, failure is accidental, can be automatically recovered.
 Replace the camera or the cable harness (or shorten the cable harness) to rectify the fault
 fault Faults occur easily when the camera matches different wire harnesses
Technical questions:
1. What is the possible cause of the failure? How to understand the individual differences of cameras and what parameters need to be monitored?
2. Please provide the design specifications of TI933 and 934 video transmission system:
2.1>IT requirements for cameras, harness and the whole video link of the host ~ What are the specific standards for back loss/plug loss/impedance?
2.2> Guidance for signal integrity analysis: Provide reference eye charts and debug specifications
2.3> Whether the video link signal and plug loss back loss detection specifications can be provided.
2.3> layout design requirements and specifications for TI933 and 934 chips.
3. Guidance on AEQ setup:
 TI934 chip has AEQ function, is it automatically turned on?
In order to solve this problem, can we set the parameters of AQE by ourselves? Is there any setting guidance?

  • Hi,

    Could you please help to clarify if this question is regarding the UB934 or UB936 deserializer? I see both parts referenced multiple times in this post.

    Regarding the blue screen reported, would you be able to check the lock status and other diagnostic registers on the issue system? If there is any debug report which can be provided that would be very helpful here.

    Best,

    Thomas