降低高速数字系统中串扰的有源电路设计

n active circuit is designed to reduce the amplitude of crosstalk and crosstalk induced jitter between two parallel interconnects in high-speed digital systems in this paper. Based on the crosstalk and jitter mechanism, a decision circuit is used to decide the propagation mode on a pair of interconnects: odd mode, even mode or superimposition of two previous modes. The obtained results are then used to control the corrected-circuit. Amplitude of crosstalk and crosstalk induced jitter are both alleviated, and quality of the resulting signal is improved remarkably. To validate the efficiency of the circuit, a system-level simulation is implemented in ADS. The results also indicated that the ultimate signal quality after corrected by the active circuit is almost equal to that of signal without crosstalk. Reliability of the system is greatly improved and the signal can be transmitted with high quality in high-speed and high-density interconnects.