均衡和预加重方法是实现MCM高性能收发器的关键。文中采用MCM互连的四端口S参数传输线模型获得了信号衰减分布规律。在此基础上,采用0.13μm CMOS工艺,设计了一种基于MCM互连的高速收发器:发送端采用二阶预加重技术提高了信号高频分量的增益,并通过高速CML驱动电路发送数据;接收端采用连续时间线性均衡器和基于LMS算法的自适应均衡器。仿真结果表明,该结构的MCM收发器完成了对10 Gbit.s-1随机信号的收发,补偿了高达-30 dB的互连损耗,并消除了码间干扰(ISI),总功耗仅为23.3 mW。
Equalization and pre-emphasis technology is the key to the MCM high-performance transceiver.In this paper,a four-port S-Parameter transmission line model is built based on MCM interconnects for the design of high-speed transceiver,and then signal attenuation is obtained.On this basis,we fabricate a transceiver using 0.13 μm CMOS process,whose data rate is up to 10 Gbit·s-1.The transmitter adopts a combination of 2-taps filter and CML driver,and the receiver combines continuous-time linear equalization and adaptive Feed Forward Equalization(FFE).The simulation results show that the-30 dB channel loss is compensated and inter-symbol interference(ISI) is reduced.The total consumption is only 23.3 mW.