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DS90UB927QEVM: Step by step guide / EVM recommendation

Part Number: DS90UB927QEVM


Hi team,

a customer of mine is looking into transmitting a LVDS display signal via a serialized FDP link. Back desalinized this signals should be displayed by a monitor (basically the setup in the pic below)

The LVDS signal is send out by an i.MX6 Host w.1280 x 800 pixel @ 60Hz.

The first approach was to serialize the signals wit the DS90UB927 and deserialize it back to LVDS with the DS90UB928. He picked up these two EVMs but is not able to get this setup running. If he connects the host and the monitor directly everything works.

Two option to support this come into my mind:

  1. we provide a step by step instruction how to set up this EVM combo
  2. can we recommend a different part / EVM what offer better plug & play characteristics?

Looking forward for you response - thank you very much!

Kind regards

Dierk Bronner 

  • Hello Dierk,

    can you tell me what do you mean by "not able to get this setup running"?
    Is there a LOCK between the devices (SER and DES)?
    Is there I2C communication possible between the devices?

    have they followed the EVM User's guides of those EVMs? these can be found on TI.com
  • Hi Hamzeh,

    great to have you on board on this. The customer is not very experienced on this FPD Link parts. I know this can be quite a challenge sometimes. Everything is still in a very early stage.

    I think the most effective way to support the customer is to propose a different set of EVMs. My hope is that maybe a more modern device family is more "plg&play" friendly what offer a EVM as well.

    The FPD link needs to be able to transmit LVDS video signal from the i.MX6 Host w.1280 x 800 pixel @ 60Hz thats it. No other fancy requirements

    Could you recommend any parts/EVMs what could suit this approach-

    Your support is highly appreciated!

    Kind regards
    Dierk Bronner
  • Hello Dierk,

    to transmit LVDS signal (oLDI Interface) you have two options:

    927 to 928 or

    947 to 948.