PCB fine line impedance - enhance correlation with field solver models
Making and modeling PCB impedance on fine line traces. Techniques for removing the effect of DC resistance and improving measured impedance and modeled impedance correlation.
0:00 Introduction
0:32 Enhancements in CITS880s and TRC (Track Resistance Calculator) Plus
0:54 Introducing TRC Plus with TDR View – portraying idealised TDR waveforms
1:13 Differential pair with 3.2 mil line widths with significant DC resistance exhibiting rising trace
2:10 Differential pair with 8 mil line widths with low DC resistance exhibiting flat trace
2:42 Launch point extrapolation on the CITS880s
3:45 Correlation of modelled and measured impedance on fine line traces
5:00 The importance of taking the effect of the trace DC resistance into account
4:15 CITS880s fine line compensation – DC resistance compensation and Launch Point Extrapolation
6:13 Contact information