An Investigation on The Optimum Termination for On-Chip Transmission Lines

This paper presents an investigation of termination impedance effects on on-chip communication systems. A lumped model of an on-chip transmission line with two types of resistive and capacitive terminations are used to analyze the loss and bandwidth of the system. According to the presented analysis, independent of the termination type, there is an optimum termination impedance to achieve a defined data rate which can be calculated as a function of the characteristic impedance of the transmission line and the required Nyquist frequency. Finally, an implemented on-Chip transmission line in 28nm-CMOS technology is used to verify the presented study.