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DTMF Decoder IC

Discussion in 'Electronic Design' started by Mike, Jan 28, 2006.

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  1. Mike

    Mike Guest

    I'm looking for DTMF decoder chips and I am having a lot of trouble
    finding any.

    Some of the part numbers I have searched are TDK's SSI-220, or G8870

    Any available DTMF decoder will do the job. Does anyone know a place
    where I could definetly find some?

  2. Mike: try Zarlink (previously Mitel) MT8880 (DTMF transceiver) or MT8870
    (DTMF receiver).
    Finding them in unit quantities may be a problem. Digi-Key does not have
    it in stock, nor does Electrosonic. Mouser does not carry the line. Avnet
    has stock of some models of the 8870 and the 8880.

  3. Rich Webb

    Rich Webb Guest

    Futurlec shows Holtek and Zarlink parts in stock.
  4. Tim Wescott

    Tim Wescott Guest

    These days folks seem to do this digitally with 8-bit processors --
    they've gotten fast enough.
  5. budgie

    budgie Guest

    Even my local (Perth, Australia) parts supplier has them in stock, $A2.20.
    Forget the prefix, 8870 is the generic part number to search for.
  6. Si Ballenger

    Si Ballenger Guest has them.
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