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Old 11th March 2008, 07:18 AM   (permalink)
Default Need a frequency receiver IC (Dtmf)

Hi, i'm lookong for a frequency receiver IC (DTMF) for my project! i wanted to use an MC145436,but i can't find any supplier (capetown, south Africa). can somebody refer me to other IC's that will do the same job? thanx
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Old 11th March 2008, 12:43 PM   (permalink)
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I just did a quick search on google for dtmf receiver and there are several other chips out there. www.holtek.com has a HT9172 -- DTMF Receiver. Hope that helps.
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Old 11th March 2008, 12:47 PM   (permalink)
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Quote:
Originally Posted by mrmonteith
I just did a quick search on google for dtmf receiver and there are several other chips out there. www.holtek.com has a HT9172 -- DTMF Receiver. Hope that helps.

@2nd for Holotek. Futurlec has them.
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Old 11th March 2008, 01:02 PM   (permalink)
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Thanks Analog. I keep forgetting about Futurlec. They have a large variety of stuff. Keep reminding me. lol
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Old 11th March 2008, 01:27 PM   (permalink)
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Thanx analog, i'll check wether they have a branch in capetown!
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Old 11th March 2008, 01:29 PM   (permalink)
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Thanx mrmonteith!
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Old 16th March 2008, 09:31 PM   (permalink)
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Why do you want this?

DTMF is obsolete.
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Old 17th March 2008, 06:48 AM   (permalink)
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Quote:
Originally Posted by Hero999
Why do you want this?

DTMF is obsolete.
i need to remotly control a circuit using my cellphone! if u have other ideas please let me know!
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Old 17th March 2008, 07:10 PM   (permalink)
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http://www.geocities.com/constantine...ntent/dtmf.htm , a software dtmf decoder using PIC micro
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