Samtec is pleased to announce a new ChalkTalk entitled “SI? Why do I Care?.” Hosted by EEJournal, this newly released ChalkTalk details SI basics and how they affect connector selection.
SI not just for “Experts”
Most designs these days have high-speed interfaces that require a solid strategy for SI. This calls for understanding the “basics” of SI.

The ChalkTalk defines each of the following terms and how it relates to connector selection and simulation.
- Insertion Loss (IL)/-3 dB Rating
- Return Loss (RL)
- Crosstalk (XT)
- Impedance (Z)
As data rates increase. connector selection and simulation also have become more complex. This ChalkTalk discusses reasons for the increased complexity while offering strategies for simplifying SI in system design.
Samtec SI Tools
Engineers love to model potential connector mated sets. The ChalkTalk describes and briefly demonstrates two Samtec tools engineers can use for modeling their systems in a variety of applications.

Samtec’s Simulator™ offers real-time high-speed performance simulations for Samtec interconnect systems. Simulator™ integrates and blends data from models to project performance in the user-defined system.
Simulator™ outputs include:
- Insertion Loss
- Return Loss
- Crosstalk (NEXT and FEXT)
- Eye patterns for high-speed cable assemblies
Channelyzer™, Samtec’s online full channel simulation and analysis tool, delivers high-speed serial channel performance data and optimization strategies within 24 hours.
Leveraging user-defined system inputs, this easy-to-use tool provides the necessary data to reinforce channel confidence.
Features of Channelyzer™ include:
- Channel modeling based on inputs provided by the user
- Produces results for standards and transceivers at varying equalization levels and data rates
- Generates individual receiver performance data per Tx/Rx assignments
Watch the ChalkTalk
For further details, please watch the ChalkTalk below.
For more information on Signal Integrity Solutions from Samtec, please click here.
Please contact our SI experts via e-mail at SIG@samtec.com.