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DS90UB935-Q1: YUV422(8bit) 1920 x 1280 @ 60fps

Part Number: DS90UB935-Q1


Hello team,

Sorry for the basic question.

1. Does this DS90UB935-Q1 support YUV422(8bit) 1920 x 1280 @ 60fps?

2. In general, how to know if that amount of data(like above, color x screen size x frame rate) can be transmitted with a certain FPD Link device?

Just multiplying all 8bit x 1920 x 1280 x 60fps = 1.18Gbps and confirm if this is below 2.528Gbps? or more complex calculation needed?

I appreciate your support.

Regards,

Hirata 

  • Hello Hirata-san,

    1. Does this DS90UB935-Q1 support YUV422(8bit) 1920 x 1280 @ 60fps?

    Using the UB935, this resolution and data type will be supported only if the Image Sensor's blanking is 7% or lower. 

    If higher blanking or resolution is required, then it is recommended to use the UB953 instead.

    2. In general, how to know if that amount of data(like above, color x screen size x frame rate) can be transmitted with a certain FPD Link device?

    If the CSI Bandwidth is equals to or smaller than the numbers shown in the Table above.

    CSI-2 bandwidth = Hres x Vres x Fps x blanking x #bits/pixle

  • Hello Hamzeh-san,

    Thanks for your detailed answer. Can I ask you 2 question?

    Q1. Is the below correct understanding
    1. 16bit(YUV422 8-bit) x 1920 x 1280 x 60fps = 2.36Gbps
    2.  2.36Gbps / 2.528Gbps = 0.933
    3. So only 7% remains for blanking...correct?

    Q2. This is general question. Do you think 7% blanking is long enough?? How about in general?

    I appreciate your support.

    Regards,

    Hirata

  • Q1. Is the below correct understanding
    1. 16bit(YUV422 8-bit) x 1920 x 1280 x 60fps = 2.36Gbps
    2.  2.36Gbps / 2.528Gbps = 0.933
    3. So only 7% remains for blanking...correct?

    Yes, correct.

    Q2. This is general question. Do you think 7% blanking is long enough?? How about in general?

    This depends on the Image sensor's settings and need. We typically calculate with a blanking of 15-20% as a rough estimation.

  • Hello Hamzeh-san,

    Thanks for your answer. I understood. 

    I appreciate your support.

    Regards,

    Hirata