A Ultra-high Speed 1:2 Demultiplexer in SiGe-HBT technology
This paper describes an ultra high speed 1:2 demultiplexer in optical fiber communication system utilizing SiGe BiCMOS technology. The transient frequency/T of the 0.25 μm SiGe:C npn-HBTs devices is up to 190 GHz and the/.,, is 220 GHz. The Latch of the demultiplexer core circuit has been researched. Limited by existing measure condition, a high gain and wide bandwidth clock buffer is designed to drive large load. Transmission line theory of ultra high speed circuits is utilized to design match network and to solve the match problem of input signal, output signal and internal signal. The transient analysis shows this demultiplexer can demultiplex one 100-Gb/s input data into two 50-Gb/s output data. The chip area of this 1:2 demultiplexer b 0.7 mm x 0.47 mm, the input and output data are all standard 400 raVp-p PCML voltage level, and power consumption of the IC is 900 mW at a power supply of -4 V.
Zhengfei Hu Yingmei Chen
Institute of Science, Nanjing University of Posts and Telecommunications, Nanjing 210003,CHN Institute of RF&OE-ICs, Southeast University, Nanjing, 210096, CHN
国际会议
成都
英文
629-631
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）