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  • TI Thinks Resolved

CC2540 & CC2590 reference design in Eagle format please

Genius 3065 points

Replies: 16

Views: 5856

Hello,

I'd really like to add the CC2590 to my CC2540 design and I see all the reference materials in the reference design http://www.ti.com/tool/tidc-bluetooth-low-energy-long-range sp_rid_pod4=MTE1NzI2OTgxOTA4S0&sp_mid_pod4=47596183&spMailingID=47596183&spUserID=MTE1NzI2OTgxOTA4S0&spJobID=582078867&spReportId=NTgyMDc4ODY3S0

but I need it in an Eagle format. Anybody have a Cadstar to Eagle translator that would be kind enough to translate the PCB files and post them here? Of course I'd rather not do it by hand due to the complications of the antenna.

Thanks,

Patrick

  • Sorry, we only provide it in this format.
  • Hi Patrick,

    We do not have this design in Eagle format. However, you can use this design as a starting point: http://processors.wiki.ti.com/index.php/CC2541_Breakout_Board

    You will have to make a symbol for the CC2590 yourself, but that is quite easy in Eagle.

    For the antennas you can follow the dimensions in the app notes AN043 and DN007:

    www.ti.com/lit/swru120

    www.ti.com/lit/swra117

    Cheers,

    Fredrik

  • In reply to Fredrik K:

    Hi Fredrik,

    Thanks as always for your help. I've converted the Cadstar file to Eagle. I need to add a status LED, a switch, and the TPS62730 for killer low power / long range operation. I'll let you know how/if it works.

    Patrick

  • In reply to PATRICK OHARA:

    Hi Patrick,

    If you are still on the first steps of your design, I suggest you to try the TPS62740 instead of the TPS62730. It's the newest design with 360nA quiescent current, you can keep the converter on instead of switching it for low power or long range operations, it is optimized for ultra low power radio and rf friendly.


    www.ti.com/.../tps62740

    Regards,

    Amjad

  • In reply to Amjad EL HILALI:

    Hi Amjad,

    Thanks for the suggestion. After reviewing the data sheet, I agree that this looks like a good upgrade. The added current capability should run the boost as well. Thanks again.
  • In reply to PATRICK OHARA:

    Hi Patrick,

    Yes in fact current capability can go up to 400mA. Also please note that TPS62740 supports wider input range, up to 5.5V, which means that you can use Lithium batteries to power your system, they have better power density than other battery types. Also please note that high current pulse peaks reduce battery life and induces voltage drop due to internal resistance of batt, so if your aim is to extend it place appropriate energy buffers to compensate (alu caps...)

    Regards,
    Amjad

    ps: If my post answers your question, please click on "Verify Answer" button to benefit others who have the same issue.
  • In reply to Amjad EL HILALI:

    Hi Amjad,

    The TPS62740 looks like a great choice for the CC2540 & CC2590. Is there a TI library file (.lbr) for the TPS62740? I'd like to include this in the design.

    Thanks,

    Patrick

  • In reply to PATRICK OHARA:

    I meant to ask about "eagle" library files for the TPS62740.

    Also, I downloaded the CadStar viewer to review the design and confirm my Eagle translation. Unfortunately the CadStar viewer shows the layer thickness as zero. Can someone please load the reference design swrr116 into CadStar and tell me what the layer thickness need to be? Of course this will be critical for correct transmission line function.

  • In reply to PATRICK OHARA:

    Hi Patrick,

    The stack-up information is found in the readme file. If I remember correctly, the height from the RF layer to the ground plane is 175 um.

    I cannot help you with the Eagle symbol/footprint for TPS62740 other than recommending you to make your own. Out of all the CAD tools I have used, I definitely find Eagle the easiest to make new symbols in.

    Cheers,
    Fredrik
  • In reply to PATRICK OHARA:

    Patrick,

    Most TI product symbols, including the TPS62740, can be exported to most common file formats using the tool "Ultra Librarian" provided for free here: http://webench.ti.com/cad/

    Regards,
    Svend


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