Decimal Frequency Divider Design-Based on DDS
Ruan Wei-hua · Journal of Nanjing Institute of Industry Technology · 2007
This paper introduces the design of the decimal frequency divider based on AD9850 which is a kind of DDS' chip,and the frequency division coefficient can be set in one limited scope.It provides three different methods which calculate the value of the frequency of the input clock,and provides the sourse code of the AD9850 which works in the parallel ways.It gives the primary schematic and explains the connectivity of the three major modules——CPLD/FPGA,AD9850 and 80C51 in details.