A High-Accuracy Design of Frequency Divider with FPGA and ASIC Implementation
Ligang Hou, Tianran Zhang, Jinhui Wang, Yanqing Li · 2012
This paper proposes a new algorithm to realize the decimal frequency divider with any number divide ratio. In the statistical periods, the divide ratio is adjusted dynamically by calculating the error of clock. Error of divider can be reduced, and the accuracy has come to 2.3E-11% after 4 rounds. The implementation of decimal frequency divider was realized with FPGA and ASIC. The article analyzed the resource and performance and compared the result of 180nm and 90nm technology on the ASIC. The layout of the circuit was realized on 180nm technology. The experimental result indicated that the decimal frequency divider takes fewer resources, and its performance is steady and reliable.