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Questions about the details in the datasheet of the dlp3010 regarding the connection.

Krijn Tiek
Prodigy 40 points
Other Parts Discussed in Thread: DLP3010, DLP2010

Dear fellow Engineers,

Recently, we, a research group at Saxion University, have bought a DLP 3010 Lightcrafter EVM from TI through an external provider. The device works as intended, but we'd like to like to elaborate on the use of a digital micro mirror array. In order to achieve our goal in developing another device with a DMMA inside we were thinking about ordering another stand-alone dlp3010 DMMA.  However, some questions arose when we researched the available products on the TI.com website.

First, the connection from the controller board to the optical assembly, in the Evaluation Module, is done with a flat ribbon-like cable. Our vision was to disconnect the calbe from the board, which would deem the EVM unusable, but would allow another DMMA to be connected. Whether the standalone DMMA would come with such a ribbon cable is not specified. Is there a package which includes such a, or similar, connection media?
Secondly, we have browsed some of the available documentation on both the DLP 2010 and 3010 and saw that the technical drawing of the DLP 2010 included a connector for aforementioned ribbon cable. On the DLP 3010 spreadsheet, this feature was missing. In what way would the method of connecting such a part differ from those which can have a ribbon calbe attached? Do these part come with a connection medium attached? See images here: 

In summary, we would like to know 2 things.
Are ribbon cables provided with the DMMA devices, or are they to be ordered sepeatly? Yes, Where? 
AND
Is it true that standalone DLP2010 and DLP 3010 DMMA's have different interfacing methods?

I hope you can help us, or can forard this question to the concerned person that would be able to do so.

Best Wishes,

Krijn Tiek
Student Applied Physics,
Saxion University of Applied Physics,
Enschede, The Netherlands

  • 0
    Prodigy 40 points

    Deer Engineers,

    Am I asking too much from you? Am I asking things that are trivial, If so, I can't find the answers? Am I asking information which can not be suplied by you? With all due respect, but it has been quite a while since I posted the Original.

    Krijn Tiek

  • 0
    TI__Intellectual 2405 points

    Krijn,

    I am very sorry that I have not been able to respond to your question sooner.  Usually, any post to this forum gets emailed to me through an automated system but I looked back through my email traffic and that does not appear to be the case with this post.  This delay was not intentional and I am looking into how it occurred.  As for your two questions please see the answers below:

    1. Ribbon cables are not included in the DLP3010 DMD (or any DMD) purchase and we do not sell them.  You can usually have flex cable designed/built through a design house.  Be sure to follow the matching requirements and trace length specifications, as they are very important in maintaining High Speed Signal Integrity.  Specifications for trace length and matching requirements should be taken into consideration when designing flex cables and can be found under the Layout Section of the DLPC3433 Datasheet in Tables 13 and 14.  We have an Application Note: PCB Design Requirements for TI DLP® Pico™ TRP Digital Micromirror Devices that is great for reference when designing such flex cables and/or PCB.  Additionally, we also have a list of design houses and optical engine manufacturers you can contact to find out what solutions they offer, you might also check with them.

    2. True. The interfacing methods are not identical.  The 2010 is smaller in size and has a different physical pinout, and fewer Data Input lines (4 rather than 8).  The types of interfaces are similar in nature, but they do have differences as can be seen in the datasheets that should be accounted for.

    Again, sorry for the delay and please let me know if you have any further questions.

  • 0 in reply to John P. Morrison
    Prodigy 40 points

    John,

    Thank you for your answer, although it is a bit late. Since it was a computer system related problem I can not really blame you of course. It is good to have an answer in the end.

    Side-effect of this all is that I, in the interest of time, have already purchased a new DMD 3010. We will look into those 'design houses' which might be able to provide us with a ribbon cable. Do you have, by any chance, an idea which of those 'houses' is best suited for our request/nearest to our location (Western Europe)?

    To be fair, I would have thought you'd send DMD's with their required connections. But that is just me. I understand if your company's startegy is to provide only essentials and let the 'design houses' design applications. Even if it is stated on you website that you manufature the DLP 3010 DMD Evaluation Modules. Is there really no way to obtain such a cable?

    Have a great day,

    Best regards,

    Krijn Tiek

  • 0 in reply to Krijn Tiek
    TI__Intellectual 2405 points

    Krijn,

    Your best bet is likely if you have a board house who designs/fabricates/assembles circuit boards for you, they can often make flex cables as well.  I would first check with them to see what resources they point you towards.

    Anhua is the OEM that manufactures the optical engines for 3010EVM for us, so it is possible they can give more information about the flex design that works with that EVM.  I know the flex is glued into the optical engine with an epoxy, so the process of removing it may be difficult.

  • 0 in reply to John P. Morrison
    Prodigy 40 points
    John,

    We've contacted a couple of manufacturers which we thought would be able to help and they have replied allready. This is all going to work fine.

    We figured that the assembly was glued, so tearing one appart would be the last of our thoughts. Hope we will not got to that stage anytime.

    Thank you for all the time you took to answer our questions, This will be all for now.

    Best Regards,

    Krijn Tiek