HT9170B DTMF Receiver

HT9170B DTMF Receiver
Çeşme:
http://www.electronicshub.org/dtmf-mobile-controlled-robot-without-microcontroller/

http://www.mediacollege.com/audio/tone/dtmf.html
https://scratch.mit.edu/projects/254080/
  1. 100nf
  2. 22pf
  3. CM8870PI
  4. HT9170B