High-speed Data System Clock Generator Logic And Program Control Circuit Design

Data Generator can generate very complicated digital signals. It can be used as programmable data signal source in the fields of communication, radar, navigation, space navigation, and so on.The work of this dissertation comes from the project "High Speed Data Generator", which is taken on by the University of Electronic Science and Technology of China. The dissertation focuses on the design of system clock logic and remote control circuit of the High Speed Data Generator, discusses a few primary methods of frequence Synthesis, analyzes some key techniques in the design of system clock logic and gives the solutions. Author also presents the system structure of hardware and software. Problems relating to the design of high speed circuit board in the system clock logic are mentioned, and corresponding circuit implementation is developed. The hardware performance and the ability of anti-interference are improved effectively. Finally, the system remote control circuit implemented using FPGA is discussed in details.The main works of the dissertation include:With a view to the theory of frequence synthesizer, the design and implementation of the system clock logic which based on DDS+PLL structure is introduced. Some key techniques such as the designs of DDS circuit, PLL circuit, filtering circuit, comparator circuit and control circuit are also discussed in details.Based on IEEE-488.1 protocol, the system remote control circuit implemented using programmable device is introduced. The design of the functional modules of the circuit is discussed.