The Electronic Design Automation (EDA) technology has become an important design method of analog and digital circuit system as the integrated circuit's growing. The EDA technology, which is closely connected with the electronic technology, microelectronics technology and computer science, can be used in designing electronic product automatically. It was firstly put forwarded in 70s. And till now there has been three stages of the EDA. That is the computer aided design (CAD) of electronic circuit, the compu...