Accurate characteristic impedance measurement for fine line traces

CITS880s and TRC Plus

Making accurate characteristic impedance measurements on fine line PCB traces

Contents

00:00 Introduction
00:32 Enhancements in CITS880s and TRC (Track Resistance Calculator) Plus
00:54 Introducing TRC Plus with TDR View – portraying idealised TDR waveforms
01:13 Differential pair with 3.2 mil line widths with significant DC resistance exhibiting rising trace
02:10 Differential pair with 8 mil line widths with low DC resistance exhibiting flat trace
02:42 Launch point extrapolation on the CITS880s
03:45 Correlation of modelled and measured impedance on fine line traces
04:15 CITS880s fine line compensation – DC resistance compensation and Launch Point Extrapolation
05:00 The importance of taking the effect of the trace DC resistance into account
06:13 Contact information