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RGB to OpneLDI converter

Nao
Genius 4905 points
Other Parts Discussed in Thread: DRA746, DS90CF388, DS90C387

Hi, E2E Menbers

I'm looking for RGB888 to OpenLDI converter.

Do you have it in TI device lineup?

Regards,

Nao

  • 0
    TI__Mastermind 29655 points

    Hi Nao,

    We have many RGB-to-Open LDI converters available in our portfolio. These devices are listed under FPD-Link I or Channel-Link I transmitters:

    OpenLDI is an open mapping standard for up to 28-bit parallel data (up to 24-bit RGB and 3 control bits) onto 4 LVDS pairs, with 7-bits embedded per LVDS serial pair. The choice of the RGB-to-OpenLDI transmitter is dependent on the required pixel clock, number of parallel inputs required (21 bits or 28 bits), and whether dual pixel support is needed.

    Feel free to provide more details about your application if you would like a part recommendation.

    Regards,

    Michael

  • 0 in reply to Michael Lu (Santa Clara)
    Genius 4905 points

    Hi, Michael

    Thank you for your quick feedback. Our application is here.

    Jacinto6 --- RGB to OpenLDI ---> DS90UB(H)947 ---> DS90UB(H)948 ---> OpenLDI to RGB ---> LCD panel.
    *All data is 1080p 60FPS.

    Do you have any recommendation devices for RGB to OpenLDI and OpenLDI to RGB?

    Regards,
    Nao

  • 0 in reply to Nao
    TI__Mastermind 29655 points
    Hi Nao,

    Based on your need for 1080p 60 fps, I think you will need to use an RGB-to-OpenLDI converter that is able to operate the correct pixel clock frequency. From my understanding of Jacinto 6 (DRA746), there are 3 LCD outputs that will provide up to 24-bit RGB at 1080p, 60 fps. Based on my estimates, this is comes out to be approximately a 137 MHz (1920 x 1080 x 60 x 1.1 = 136.9 MHz). I think therefore it is best to use the converter's single-to-dual pixel operation (supports up to 170 MHz incoming clock) in order to transmit the data in dual-pixel form. You can then operate in dual pixel mode the rest of the way.

    For the RGB-to-OpenLDI converter, I recommend the DS90C387. For the Open-to-RGB converter, I recommend the DS90CF388. However, please check first whether the LCD panel after the DS90CF388 is able to operate in dual pixel mode. If the LCD panel does not operate in dual pixel, then we will be unable to recommend a deserializer product that operates beyond 112 MHz.

    Regards,

    Michael