SOIC DTMF IC encoder and decoder needed

[Phil in Melbourne]

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?

 

[budgie]

On Wed, 19 Sep 2007 18:53:57 +1000, "Phil in Melbourne" <reply@tonewsgroup>
wrote:

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?

8870 etc?

There are number of decoder chips listed at

http://www.alldatasheet.com/datasheet-pdf/pdf/58238/CLARE/M-8870.html

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

 

[Joe G (Home)]

HOLTEK DTMF Decoder IC's.

"Phil in Melbourne" <reply@tonewsgroup> wrote in message
news:46f0e3ae$0$1028$afc38c87@news.optusnet.com.au...

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?

 

[budgie]

On Wed, 19 Sep 2007 18:53:57 +1000, "Phil in Melbourne" <reply@tonewsgroup>
wrote:

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?

Further to Joe's suggestion, try
http://www.futurlec.com/cgi-bin/search/search.cgi and put DTMF in the search
box. DIL and SMD devices.

 

[Phil in Melbourne]

Further to Joe's suggestion, try
http://www.futurlec.com/cgi-bin/search/search.cgi and put DTMF in the
search
box. DIL and SMD devices.

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