作者: Wen-Tzeng Huang , Chi-Hao Lu , Ding-Bing Lin
DOI: 10.2528/PIER09071709
关键词:
摘要: Modern electronic products are increasingly based on high-speed, high-density circuitry operating at lower voltages. With such designs, the signal integrity (SI) in a poor printed circuit board layout is afiected by noise and may become unstable. Crosstalk major source of that interferes with SI. Generally, crosstalk can be reduced adding guard trace between victim aggressor areas circuit. In addition, grounded vias added to help reduce crosstalk. Since large number degrade SI ∞exibility routing, we propose method calculate optimal distance determine smallest required achieve performance reducing We show time-domain simulation our reduces near- end 27.65% far-end more than 31.63% compared three-width rule. This backed up experimental results not only reductions 34.49% 37.55% for over time-domain, respectively, but also 2.1dB 3.3dB frequency-domain, respectively. Our indicate has better other methods.