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DTMF Module

  • Rajkumar Sharma
  • 22.153 Views
  • medium
  • Tested
  • SKU: EL44332
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C039_1

 

DTMF Development Board offers a very convenient way to generate DTMF tones and demodulate it.  It uses the famous MT8880/MT8888 DTMF transreceiver IC.

  • Easy 10 pin Box Header connector for interfacing data/control pins
  • Crystal derived frequency source for accurate generation and demodulation of DTMF tones for your project
  • Onboard upto 350 mW audio amplifier block for DTMF tones with Volume Adjust Preset
  • 5V Supply sourced via interfacing Box Header
  • Header  type analog connection
  • Four mounting holes 3.2 mm each
  • PCB dimensions 56 mm x 49 mm

Schematic

SCHEMATIC

 

Parts List

BOM

Gerber View

Photos

C039

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6 Comments
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robert

useful

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Rajesh Vagadia - VU2EXP

I will Try to use this project with my Ham Radio walki talkie.
tnx VU2EXP

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KB4MDD

Where can this be purchased?

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mixos

We don’t sell kits or ready products. Alternatively, you may find some kits of our projects here: http://www.koteq.com

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Miko

Where do we get the gerbers?

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mixos

Gerbers uploaded above. Thanks

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