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> Dtmf detector kit - with HT9170 - experiment with dtmf
Dtmf detector kit - with HT9170 - experiment with dtmf
DTMF detector kit with binary outputs.
Our DTMF detector kit allows the quick implementation of the HT9170 DTMF receiver IC.
The item is supplied as a kit of parts with high quality gold plated PCB.
Three input configurations are possible, un-balanced audio, balanced audio and microphone.
The 4 binary outputs of the HT9170 together with the data valid (DV) strobe are made available on the 8 pin connector; together with the output enable input (OE) and the power connections. If output enable is not required just link it to the 5V pin.
The kit will work on 3V to 5V DC therefore the kit can also be used with say 3.3V logic.
The PCB is double sided PTH (plated through hole), 38mm x 30.5mm in size and Gold Plated.
All parts shown in the assembled photo are included as well as some extra resistors (2 x 10K) for alternative input configuration.
The pins can be fitted on the top or on the back of the PCB. Fitting the pins on the back allows fitting the whole assembly onto 0.1 pitch prototyping boards.
The kit is packed in a plastic box for posting to protect the parts, we post by first class in the UK and Airmail Worldwide.
