Iam using a PCD3312CT i2c DTMF chip for my AS level Electronics project and i am having problems making output DTMF tones. There is a chance that the chip might have been damaged as it is a SOIC and soldering to the DIL adaptor, but i think its that i dont know the basic programm it, Any advice would be gratefully received,
The data sheet for the chip is :
http://docs-europe.electrocomponents.com/webdocs/011e/0900766b8011ea47.pdf
The data sheet for the chip is :
http://docs-europe.electrocomponents.com/webdocs/011e/0900766b8011ea47.pdf