S-parameters, traditionally used in RF/Microwave design, have been widely adopted by high speed digital designs as the multi-gigabit interface continues to advance to higher data rate.
Xpeedic’s SnpExpert provides a quick way to understand the electrical characteristics of the passive interconnectors in a system by not only viewing the S-parameter in frequency domain but also examining the time domain reflectometry (TDR). One-click definition of differential pairs and victim/aggressor setup, together with the built-in NEXT, FEXT, PSXT, ILD, ICR, and ICN, allows user to quickly evaluate the crosstalk. The delay and skew calculator requires no cumbersome circuit schematic setup. Compliance metrics with IEEE 802.3ap, 802.3ba, 802.3bj and OIF CEI 25G/28G standards quickly reveal the S-parameter compliance have been included. Passivity, causality, reciprocity, and stability metrics can be used to determine the quality of the S-parameter. Automatic templates process S-parameter plotting to report in Word or PPT formats. The through-only de-embedding method helps SI engineers to quickly obtain the DUT characteristics by removing the fixture effect. The 2D RLCG full-wave solver enables quick and accurate transmission line characterization.