Wide-Division-Range High-Speed Fully Programmable Frequency Divider

This paper presents the design and implementation of an all-programmable frequency divider with an ultra-wide division range for use in Phase-Locked Loops. The proposed divider uses a fully modular architecture and dynamic logic - implemented in TSMC 0.18 mu m - and can divide input frequencies up to 7.55GHz by any ratio between 8 and 255 while consuming 11mW from a 1.8V power supply. The divider compares very favorably to other implementations reported in literature in terms of division range and frequency of operation.