Intersymbol interference loss modeling platform meets top-tier IEEE P370 standard, expands Wild River Technology portfolio

HILLSBORO, Ore. — December 1, 2020 — Wild River Technology, the leading supplier of signal integrity measurement and optimization test fixtures for high-speed channels at data rates of up to 224G, announced today the availability of a new 56G intersymbol interference (ISI) loss modeling platform. Dubbed ISI-56, the platform upgrades the current ISI-32 loss modeling platform from Wild River Technology with enhanced accuracy and modeling for SerDes channels operating at 56G. ISI-56 is the first loss modeling platform to meet the stringent requirements of the IEEE P370 specification, which addresses items such as recommended design of signal integrity test fixtures and methods and processes for ensuring the accuracy and consistency of measured data for signals with frequency content to 50 GHz. This test fixture meets the highest IEEE P370 Class A signal integrity requirements.

ISI is a form of signal distortion in which one symbol, or data element, interferes with subsequent symbols. This interference creates very defined time-domain jitter. The platform delivers true ISI modeling with a clean insertion loss and industry-leading signal integrity. S-parameter models are provided to support simulation analysis from popular EDA vendor tools.

Loss curves, clean down to 60db: Wild River Technology ISI-56 intersymbol interference loss modeling platform.

The ISI-56 platform mimics a pure-loss backplane with very low return loss and no resonance due to material weave. The platform can be combined with Wild River Technology’s XTALK-32 platform to establish crosstalk and/or return loss degradation. Designers can test the reach of SerDes devices with the ISI-56 platform and create a very accurate design of experiment (DOE) characterization. Both platforms, used in concert, are EDA friendly and include quality-tested, measured S-parameter models for also emulating a backplane channel. Wild River Technology also provides channel operating margin (COM) metrics for all serial link test platforms like the ISI-56.

“Wild River Technology is all about supporting signal integrity experts with the best tools and models to optimize high-speed communication channels. The IEEE P370 specification, which I had a hand in developing, sets the bar very high,” said Al Neves, founder and chief technologist at Wild River Technology. “Meeting the demands of IEEE P370 isn’t easy. I have seen products from our competitors that miss the mark by a lot. Products like that serve no one. Wild River will always provide the highest quality signal integrity test tools and models to support the demands of high-performance channel design.”

The ISI-56 platform is available now, along with S-parameter models, options for ultra-low skew cables, and full COM metrics. Contact This email address is being protected from spambots. You need JavaScript enabled to view it. for more information.

About Wild River Technology
Wild River Technology is the leading supplier of signal integrity measurement and optimization test fixtures for high-speed channels at data rates of 224G and below. Our channel modeling platforms, adapters, cables and measurement workspace products elevate signal integrity practices and methods. We are signal integrity experts – our mission is to support signal integrity practitioners with superior products and models. For more information, please visit

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Channel Modeling Platforms

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Custom Channel Modeling

For development of high-speed systems based on your stack-up. Includes full HFSS and Simbeor model library to 70 GHz. Deliverables include pristine connector launches and stellar via designs, cross section analysis, and unimpeachable material/loss models.

  • Twelve weeks typical completion
  • Launch design 3X better than IEEE PG370 compliance
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  • Material extraction including surface roughness modeling provided
  • Allegro layout (.brd or OBD++)

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32 Gbpsec & 50 GHz
Standard Channel Modeling Platform

Our standard channel modeling platforms are built for enhancing signal integrity workflow confidence to 50 GHz and 32 Gbpsec, so you can benchmark and prove out your solution.

  • EDA starter kits (Agilent ADS/Simbeor/Ansys HFSS)
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  • Passive/causal-tested S-parameters provided
  • Allegro layout (.brd or OBD++)

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6-56 Gbpsec
Crosstalk Aggression

The industry’s first tool for crosstalk generation in 6-32 Gbpsec NRZ and PAM-4 56 Gbpsec systems. Provides crosstalk for low, medium, and high return loss conditions in seconds.

  • IEEE 802.3bj, OIF-CEI 25G LR, COM
  • Mimics backplanes
  • 10µV to 200mV of RX noise
  • Can be used with ISI-28/32 or ISI-56 for combining loss and crosstalk
  • Includes Keysight ADS EDA serial link kit supporting IBIS-AMI and single-bit response optimization
  • Includes S-parameter library for direct EDA serial-link simulations

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56 Gbpsec ISI Loss Modeling Platform

Wild River Technology 56G ISI Loss Modeling Platform

The ISI-56 has 2X better signal integrity than ANY other intersymbol interference (ISI) test fixture. It is the first ISI loss modeling platform to meet the stringent requirements of IEEE P370.

  • Loss from –5dB to –40dB at 56 Gbpsec
  • Causal/passive high-quality S-parameters included
  • Full channel operating margin (COM) metrics provided
  • Options for ultra-low-skew cables are available/li>
  • Superb signal integrity <–20dB return loss
  • Pristine launch design
  • Assembled with next-generation Samtec 2.4mm connectors

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