Abstract:

Digital control potentiometer is a new type of CMOS analog and digital mixed signal processing IC chip，at present，this new device has a strong vitality and a very wide range of applications. Since the appearance of digitally control potentiometer，the main products are produced by foreign companies. In China，this new device is not known to many people engaged in the work of electronic technology. An introduction to the application of numerical control potentiometer technology made easy to understand was given by long-term studied on the Digital Potentiometer, combined with the four typical application cases，progressively，step by step in depth. It can provide a good reference for teaching and technical personnel to understand and master application methods of the new device. All of the application examples are original design，and are tested by the Multisim NI 13 software simulation and actual circuit.

Key words: DCP(Digitally Control Potentiometer), keying, programmable, MCU(Microcontroller Unit)