SOIC DTMF IC encoder and decoder needed

- P
- Phil in Melbourne
  
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posted
16 years ago

Wed, Sep 19, 2007 8:53 AM

Hi all,

I'm looking for a DTMF encoder ic and a matching DTMF decoder IC.

The ones I have seen use a serial interface bus but I am after discreet binary output.

I am aware of the Motorola MC145436 but it seems that this chip is going out of fashion. (Farnell and RS dont stock it any more)

Any ideas?

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- B
- budgie
  
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posted
16 years ago

Wed, Sep 19, 2007 12:51 PM

8870 etc?

There are number of decoder chips listed at

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some of which might actually be obtainanable, but ye olde Mitel 8870/880 series were certainly the classical units for this.

- J
- Joe G (Home)
  
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posted
16 years ago

Wed, Sep 19, 2007 1:00 PM

HOLTEK DTMF Decoder IC's.

- B
- budgie
  
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posted
16 years ago

Thu, Sep 20, 2007 1:05 AM

Further to Joe's suggestion, try

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and put DTMF in the search box. DIL and SMD devices.

- P
- Phil in Melbourne
  
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posted
16 years ago

Fri, Sep 21, 2007 12:10 PM

Ah, forgot about good ol futurlec. Thanks. Will place an order.

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