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DS90UB933-Q1: display flash

Raymond He
Expert 1990 points
Part Number: DS90UB933-Q1

At present, the customer is doing the camera function of ADAS system, and the circuit USES ds90ub933-q1. When the head picture of the controller shell is disturbed, the image will scroll up and down or flash screen will appear.

Product installation is as follows:

The camera is made of aluminum. The shell and the lower cover are sheet metal parts.

At the moment this can be seen anywhere in the control metal case, or in the case of the controller wrapped in copper foil

Attached is the product installation drawing, the product phenomenon video, and the corresponding circuit PDF document. Please help to analyze it, thank you12kv.rar

  • 0
    TI__Mastermind 30515 points
    Raymond,
    The signal from 933 is high speed with ~1Gbps, it is sensitive with the environmental noise. In your case, pls make sure the link from transmitter from receiver side has good shielding performance, and the total system grounding including the PCB grounding and shell grounding should be good which can discharge the noise quickly injected into high speed device 933 and its receiver.

    regards,
    Steven