Where can I get a DTMF encoder and decoder IC ?

[tazmana]

dtmf need

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

 

[nicleo]

dtmf need

Some suggestions in the following post:

**broken link removed**

You can buy (DTMF ICs from Zarlink) online here:
https://www.futurlec.com/ICSFZarlink.shtml

 

[diegolinder]

Re: dtmf need

i use ht9200 dtmf generator

www.holtek.com/products/update/9200.htm

and cd8870 as decoder.

 

[cozturk]

dtmf need

cm8880 :encoder+decoder

 

[Externet]

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]

Re: dtmf need

Hi!

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

Vlad