Simulation and Synthesis of 16×16 Switch for Feed Back Based Switch Systems P.Aruna #1, R. Mahesh Kumar *2, G.Mahammed Rafi#3

Abstract — In this paper, A low propagation delay Birkhoff-von Neumann (LB-BvN) 16 × 16 switch fabric IC is proposed for feedback-based switch systems is designed. The next generation terabit switches are constructed from the 16×16 switch. For a feedback-based switch system, throughput significantly reduces due to the long propagation delay of the switch module of system. To overcome propagation delay problem load balanced switches are used. This switch consists of CML D flipflop and CML MUX which are faster compared to CMOS circuits. In CML buffer PMOS active load and active backend termination are added. The switches are directly implemented in high speed domain without SerDes interfaces.The power is reduced with the removing of SerDes interfaces. General Terms: D flipflop,MUX,HOL blocking Keywords—crossbarswitch,VOQ, throughput, dela