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DS90UB913A-Q1: TI 913A compatibility with YUV 10bit

omar chakroun
Prodigy 225 points
Part Number: DS90UB913A-Q1

Hi there,

i Have a question regarding the support of YUV data on 10 bit over the TI913A. is this feasible and compatible?

if yes, is there any limitations in term of supported resolution? our concern is related to the supported clock by the serializer.

thank you

  • 0
    TI__Intellectual 1930 points

    What is the resolution you are looking at?

    The 913A device can support 10 bit YUV data. When doing the pixel clock computation, a factor of 2 must be included due to the YUV format requiring 2 bytes to represent a single pixel. In otherwards:

    PCLK = 2 * (horizontal lines) * (vertical lines) * (frame rate)

  • 0 in reply to Mostafa Shuva
    Prodigy 225 points

    Hi Mostafa,

    thank you for the quick reply, we are looking for the 1280*800 / 1280*960 @ 30/60 fps for both.

  • 0 in reply to omar chakroun
    TI__Intellectual 1930 points

    Hi Omar,

    For 1280x800 @ 30fps you are looking at:

    PCLK = 1280 * 800 * 30fps * 2 = 61.44 MHz

    For 1280x800 @ 60fps you are looking at:

    PCLK = 1280 * 800 * 60fps * 2 = 122.88 MHz. This won't work with the 913A part. For this data rate we would recommend moving to the 935 or higher, which is a CSI device.

    For 1280x960 @ 30fps you are looking at:

    PCLK = 1280 * 960 * 30fps * 2 = 73.728 MHz

    For 1280x960 @ 30fps you are looking at:

    PCLK = 1280 * 960 * 60fps * 2 = 147.456 MHz. This won't work with the 913A part. For this data rate we would recommend moving to the 935 or higher, which is a CSI device.

    If you work the calculation backwards you can determine the max frame rate/resolution you can support given that 10 bit mode on the 913A accepts a 100MHz PCLK.