Anybody used the MT3271 DTMF receiver and have schematics of a woring
phone line iterface?

Date sent:              Tue, 10 Oct 2000 12:22:53 +0100
Send reply to:          pic microcontroller discussion list <PICLIST@MITVMA.MIT.EDU>
From:                   Andrew Larkins <fred@ALARKINS.FREESERVE.CO.UK>
Subject:                Re: [EE] : dtmf RECEIVER / TRANSMITTER
To:                     PICLIST@MITVMA.MIT.EDU

> I have used a MT8870 as a DTMF receiver with a 16F84.  See Mitel
> application note MSAN -108 for simple receive only line interface
> circuit.  Somewhere I spotted some DTMF generation code which would
> remove the need for a transmitter chip.
>
> Andrew
>
> ----- Original Message -----
> From: pang khong lin <klpang@HOTMAIL.COM>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Tuesday, October 10, 2000 6:59 AM
> Subject: [EE] : dtmf RECEIVER / TRANSMITTER
>
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==============================
Ruben Jvnsson
AB Liros Elektronik
Box 9124, 200 39 Malmv, Sweden
TEL INT +46 40142078
FAX INT +46 40947388
ruben@pp.sbbs.se
==============================

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