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Can AM3892/4 supports LVDS interface to LCD display?

Poh Leong Ng
Intellectual 745 points
Other Parts Discussed in Thread: AM3892

Please find below the interface required between the MPU and LCD display.
Can AM3892/4 supports LVDS interface to LCD? If not, is there a workaround by using some bridging IC between the MPU and Display?
Is there a reference or application note on this?

4863.LVDS Interface.pdf

  • 0
    TI__Mastermind 43875 points

    These processors can interface to LVDS through their parallel interfaces and connecting to an external LVDS PHY like the TI LVDS83B.

    For higher resolutions a dual channel LVDS transmitter is needed. TI does not have any dual channel LVDS transmitters, but there are some companies that do.

    Single channel is used for resolutions with pixel clocks up to about 80MHz, dual channel for higher.

    Note that a 'channel' can actually have up to 4 differential pairs, so a dual channel interface would actually use up to 8 differential pairs.

    Please see the following for some additional information.

    http://processors.wiki.ti.com/index.php/LCD_connectivity

     

    BR,

    Steve

  • 0 in reply to Steve Clynes
    Intellectual 745 points

    Hi Steve,

    Thanks for your answer.

    For connection, I can reference the examples in http://processors.wiki.ti.com/index.php/LCD_connectivity right?

    Is there any reference design or application notes on the actual implementation using AM389x Cortex-A8?

    Regards,
    Poh Leong 

  • 0 in reply to Poh Leong Ng
    TI__Mastermind 43875 points

    The exact implementation required will depend on the specific LCD you choose to connect,.

    The Wiki page mentioned describes how to connect various LCDs to a 24 bit or 18 bit digital interface.

    There are not currently any specific reference designs for the AM389x, but the OMAP daughter card which is referenced on the wiki page can be used as a starting point. Only the connector really needs to be changed since both OMAP and the AM389x have 24 bit digital RGB outputs.

    BR,

    Steve