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Where can I get a DTMF encoder and decoder IC ?

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tazmana

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dtmf need

do you know dtmf encoder and decoder ic what is the part number and where can i buy
 

cozturk

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dtmf need

cm8880 :encoder+decoder
 

Externet

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Re: dtmf need

Hi.
If you cannot find at the store the integrated circuits suggested above, make your life easier by obtaining discarded telephones from friends, neighbors, check what number is it; look at its application notes and data sheet, and canibalize the encoder chip or better, saw-off the portion of pc board with its peripherial components included. The keypad will be useful too.
Miguel
 

vlad5

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Re: dtmf need

Hi!

??1008??18 - exUSSR encoder (KR1008WJ18 - translit)
??1008??19 - exUSSR decoder

Vlad
 

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