Domestic and international status and development trend of digital electronics,

With the rapid development of computer science and technology, the advantages of signal processing with digital circuits have become more prominent. In order to give full play to and make use of the powerful functions of digital circuits in signal processing, we can firstly convert analog signals into digital signals proportionally, and then send them to digital circuits for processing, and finally convert the results of the processing to the corresponding analog signals according to the needs of the output. Since the 1970s, this digital circuitry to deal with analog signals, the so-called "digital" wave has swept the electronics technology in almost all areas of application.