Implementation of Direct Digital Frequency Synthesis with Chip Microcompupter and CPLD
Yongrui Zhang · Modern Electronic Technique · 2002
Compared with traditional methods of the frequency synthesis,Direct digital frequency synthesis(DDS) has lots of advantages,such as quick frequency exchange,high frequency resolution,continuous phase change,etc.Microcomputer has the capability of flexible control and good function of man- machine conversation.CPL D is characterized by high performance and integration.Many drawbacks can be overcome and a good DDS system with good performance can be developped if we comebine CPL D with microcomputer in the same system.