dramrattan
Member
Hi.
I'm trying to seperate DTMF signals(DTMF IN) from DTMF tones(DT) and found a circuit that does it using a transformer. However i don't understand how i could connect it like shown in the diagram. It would be better if i could connect it using an off the shelf chip to do the same. Thanks.
I'm trying to seperate DTMF signals(DTMF IN) from DTMF tones(DT) and found a circuit that does it using a transformer. However i don't understand how i could connect it like shown in the diagram. It would be better if i could connect it using an off the shelf chip to do the same. Thanks.