A novel ultra high-speed flip-flop-based frequency divider

Frequency dividers play an important role in high speed communications systems. In particular, optical communication circuits demand frequency dividers capable of operating well above 10 GHz. This paper presents a high-speed flip-flop-based frequency divider incorporating a new high-speed latch topology, which provides satisfactory performance for frequencies up to 17 GHz. This circuit is designed and simulated in a standard 0.18 /spl mu/m CMOS process.