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What type of choke/resonant frequency?

Discussion in 'Electronic Basics' started by Steve, Oct 2, 2004.

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  1. Steve

    Steve Guest

    Hi,

    I'm trying to use a Toslink optical audio receiver module (TORX176) in a
    circuit. The datasheet says it needs a 47uH choke between one of the pins
    and the 5V supply line.

    There are no details in the datasheet about what types of choke would be
    suitable, so can I use any 47uH choke? E.g. this one in a 1210 package?
    http://uk.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=3531351&N=0

    What resonant frequency do I need/need to avoid? (the choke above is 15MHz)

    Many thanks,
    Steve
     
  2. Dbowey

    Dbowey Guest

    Steve wrote:

    << circuit. The datasheet says it needs a 47uH choke between one of the pins
    and the 5V supply line.

    There are no details in the datasheet about what types of choke would be
    suitable, so can I use any 47uH choke? E.g. this one in a 1210 package?
    http://uk.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=3531351&N=0

    What resonant frequency do I need/need to avoid? (the choke above is 15MHz)
    That is a non-critical part application and any 47uH inductor will do fine.
    That Farnell choke looks good.

    Don
     
  3. Steve

    Steve Guest

    Very many thanks for your reply Don!

    Steve
     
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