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ralph23
Visitor II
August 19, 2015
Solved

SRTAG2K-D antenna connection / design

  • August 19, 2015
  • 1 reply
  • 606 views
Posted on August 19, 2015 at 18:05

I am going to use the SRTAG2K-D chip but the data sheet does recommend nothing about the antenna connection and design. Is there any more about that chip that I am missing ?

#srtag2k-d
    This topic has been closed for replies.
    Best answer by Patrick SOHN
    Posted on September 24, 2015 at 14:50

    Hello Ralph,

    First of all please note that SRTAG2K-D is Not Recommended for New Design, so I strongly suggest that you use ST25TA02K-P instead. This last is smaller in terms of package and also has a bigger tuning capacitance value (50pF instead of 25pF).

    About antenna design the document explaining this item is located here:

    http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/CD00232630.pdf

    In practice it is about designing an inductor which in conjunction with tuning capacitor resonates around 14MHz.

    Also find here a software tool that permits a first inductance calculation with respect to your design:  

    http://www.st.com/web/en/catalog/tools/PF257518

    Best regards

    I am going to use the SRTAG2K-D chip but the data sheet does recommend nothing about the antenna connection and design. Is there any more about that chip that I am missing ?

    1 reply

    P
    Patrick SOHNAnswer
    Visitor II
    September 24, 2015
    Posted on September 24, 2015 at 14:50

    Hello Ralph,

    First of all please note that SRTAG2K-D is Not Recommended for New Design, so I strongly suggest that you use ST25TA02K-P instead. This last is smaller in terms of package and also has a bigger tuning capacitance value (50pF instead of 25pF).

    About antenna design the document explaining this item is located here:

    http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/CD00232630.pdf

    In practice it is about designing an inductor which in conjunction with tuning capacitor resonates around 14MHz.

    Also find here a software tool that permits a first inductance calculation with respect to your design:  

    http://www.st.com/web/en/catalog/tools/PF257518

    Best regards

    I am going to use the SRTAG2K-D chip but the data sheet does recommend nothing about the antenna connection and design. Is there any more about that chip that I am missing ?

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