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DS90UB934-Q1: DS90UB934-Q1/DS90UB913 /CMOS have no HSYNC or VSYNC output but data_8bit

Part Number: DS90UB934-Q1

Hi,We designed a board by using 934/913 to connect CMOS sensor.Now we have got image stream data (configured 10bits ) and HSYNC/VSYNC signal by detecting CMOS pins,but the output of 934 does not have HSYNC/VSYNC signal but have data streams.By configuring the 934 output 12bits, the HSYNC/VSYNC signal  appears.I do not know the reason to the case.How should I resolve the problem?

  • Is this the same question?
    e2e.ti.com/.../735724

    Regards,

    Hamzeh

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    More information on IVI or ADAS FPD-Link products: http://www.ti.com/interface/fpd-link-serdes/overview.html

  • In reply to Hamzeh Jaradat:

    Hi,Hamzeh:

           My question is same with the link you applied.While you did not answer the question accordingly.Now I have some doubt that may lead to the problem I  asked.

    One: Is raw  only this one type of 934 or 934 can change YUV to raw?We have YUV data to 913,so we think 934 can output YUV.

    Two:The 934 device mode according to 913 pclk frequency range can be used for no more than the maximum or must be between the range?

    For example , If  the input speed of 913  is  48Mhz,the 934 device mode can not select RAW10(50MHz-100MHz)?For  lower rate data stream lower than 25MHz,no choice for use?(RAW12 HF 37.5-75MHz;  RAW12LF:25MHz-50MHz  RAW10:50MHz-100MHz)   ?

    Thank you for your reply. 

      

  • In reply to Hanyia Chia:

    Hi,
    pls help capture the waveforms of UB913a's HS/VS signals and UB934's HS/VS signals in one page, thanks.
    btw, pls check the HS/VS pins's schematic in UB934 side.
    For your questions:
    1. ? UB913/UB934 is SerDes, designed for physical layer it has no video data converter function.
    2. must be among the range.

    regards,
    Steven

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