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DS90UB954-Q1: The stability question of resolution

Kailyn Chen
Genius 9560 points
Part Number: DS90UB954-Q1
Other Parts Discussed in Thread: ALP

Hello，

Out customer use DS90UB913A +DS90UB954 for camera application, but he found that sometimes the resolution of UB954 output is abnormal, for example, if the resolution is 1280*720P, but sometimes the output of UB954 is 1644*449 . Could you please provide some suggestions?

Best regards

Kailyn

  • 0
    TI__Mastermind 30515 points

    Hi, please check:

    1. if the lock is stable in ub954 side? any error is detected in reg. 0x4e/4e/55/56, please check the d/s on these reg. descriptions. If you read these register correctly, and has no error, please check step2, if has error, please check step3.

    2. pls check if the sensor output has two different video format or other sending issue? you can capture the vs/hs in camera

    3. pls check the link margin design, you can run the MAP in TI's ALP tool, then you can check the cable loss/reflection, power supply noise, PoC design etc.

    regards,

    Steven

  • 0 in reply to Steven(Shenzhen) Shi
    TI__Genius 9560 points

    Hi Steven,

    Thank you for your reply, and I will check again with the customer.

    Best regards

    Kailyn