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DS90UB934-Q1: DS90UB934 in the use of the process found occasional data loss phenomenon

Part Number: DS90UB934-Q1

In the development of the mass production project of the rearview mirror in  streaming media, DS90UB934 is used to unstring. At present, in the product development, it is found that the output signal of the unstring will occasionally lose 36 lines of data.

As follows:

934 in normal use on the left, the line signal in the red circle is available, and the line signal in the red circle is not available for the abnormal one on the right.

Normal conditions:

Output V total 420, abnormal case, output V total 384

PIN10  Normal      no normal.

  • Hello Bao,

    are you using the same Camera in both tests? Same ECU or different?

    How often is this abnormal behavior happening? at every power cycle?

    How many systems are showing this behavior?

    If you restart the Camera (SER), will that heal the issue?

    If you restart the ECU (DES), will that heal the issue?

    Have you swapped the Camera/ Cable/ ECU?

    Which SER are you using?

    Which clocking Mode? and what is the PCLK?