I-PEX offers simulated S-parameter data for NOVASTACK^® Series board-to-board connectors in both single-end (50 ohm) and differential (100 ohm) signal configurations. The data is provided using standard reference impedance environments to support high-speed digital signal integrity analysis and system design. The downloadable S-parameter files provide the fundamental characterization of connector signal integrity performance across the supported frequency range. Additional signal integrity metrics, including Insertion Loss, Return Loss, Near-End Crosstalk (NEXT), Far-End Crosstalk (FEXT), and other relevant high-speed signal integrity parameters, are derived from these S-parameters and are included in the report.

Touchstone (.s2p) files for single-ended signal paths and Touchstone (.s4p) files for differential signal paths are available for download on the Signal Integrity Data page for each NOVASTACK^® Series connector.

Table 1 below includes links to register and download the Signal Integrity test reports and Touchstone files for each NOVASTACK^® Series connector. Once the product image or "SI Download" is clicked, you will be taken to the corresponding product page. The screen shot below the table shows an example of the product page for NOVASTACK^® Series connectors.

For example, the product page for NOVASTACK^® 35-HDP 12 connector like all other NOVASTACK^®  series connectors, has a "Downloads" section as shown below.

Once the SI test reports or Touchstone files link is clicked, a new window pops open where you are required to register with email address before accessing the reports or Touchstone files.