Looking for chips that make dtmf tones and decodes them

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tazmana

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73m2901 dtmf

I want to make a modem(not so fast) and i am looking for chips that make dtmf tones and also decodes them not like 567, i need a digital one
 

I advise to look the modems CML

I advise to look the modems CMLmicro:
CMX624, CMX644A, CMX867, CMX868
I with them work and I have no problems.
**broken link removed**
 

Re: need a modem chip

You must look : TCM 3105 or AM 7910-AM 7911 (1200-9600 Bps FSK).
 

need a modem chip

if u want to make the modam on hobbying level just use cheap one MT8880 that is actually a DTMF tranciever
 

need a modem chip

Hi,

Try TDK chip modem. 1 IC solution:
part number 73M2901.

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Good luck.
 

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