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Signal and Power Integrity Measurement

At Signal Edge Solutions, we provide world-class signal integrity (SI) and power integrity (PI) measurement services to bridge the gap between your virtual models and physical hardware. Our measurement services provide your team with the hands-on support you need for design bring-up, validation, and compliance testing.

 

Using state-of-the-art laboratory equipment and methodologies, we capture the real-world performance of your high-speed interfaces to ensure they meet the rigorous demands of modern standards. Whether you are troubleshooting a failing prototype or performing final compliance sign-off, our measurement services provide the empirical data you need to move to production with total confidence

Advanced Time & Frequency Domain Characterization

We utilize high-bandwidth oscilloscopes and Vector Network Analyzers (VNAs) to dissect signal behavior across the entire spectrum. Our measurement capabilities include:

  • VNA & S-Parameter Extraction: We perform multi-port VNA measurements to characterize insertion loss, return loss, and crosstalk up to 67 GHz and beyond. We provide high-fidelity S-parameter models of your physical traces, connectors, and cables for back-simulation and model correlation.

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  • TDR/TDT Analysis: Using Time Domain Reflectometry, we pinpoint the exact location of impedance discontinuities within your signal path—whether it’s a poorly optimized via, a connector footprint mismatch, or a PCB fabrication error.

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  • Eye Diagram & Jitter Decomposition: We capture real-time eye diagrams to evaluate timing margins and noise floors. Our advanced jitter decomposition identifies random (RJ) and deterministic (DJ) components, allowing us to trace timing issues back to their root cause—be it crosstalk, EMI, or power supply noise.

VNA & S-Parameter Extraction
TDR/TDT Analysis
Eye Diagram & Jitter Decomposition

Custom Test Fixture Design

Need a custom fixture designed and manufactured for your signal integrity, power integrity, or EMC test application? We can help. 

Probing & Fixture De-Embedding

The greatest challenge in SI measurement is "measuring the circuit, not theprobe." We employ advanced de-embedding techniques (such as AFR and 2xThru) to remove the effects of test fixtures and cables from the final results. This ensures that the data you receive represents the actual performance of your Device Under Test (DUT), providing the "clean" data required for accurate model-to-hardware correlation.

High-resolution Hardware Validation

  • ​Automated Transient Step Load and Large Signal Testing: Using our proprietary automation software, we drive your waveform generator and oscilloscope to capture the exact step load response of your VRM. We sweep across frequencies to identify worst-case resonance and "ringing," ensuring your design can handle sudden shifts in current without violating voltage droop limits.

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  • PARD (Periodic and Random Deviation) Testing: We quantify the spectral content of your power supply noise, helping you distinguish between switching regulator harmonics and induced crosstalk from neighboring high-speed signal lines.

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  • Milliohm-Level Impedance Mapping: Using two-port shunt-through measurements with a Vector Network Analyzer (VNA), we characterize your PDN impedance from DC to GHz. This allows us to correlate your physical board stackup and capacitor selection against your target impedance requirements.

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  • High-Resolution Ripple & Noise Analysis: We utilize specialized, low noise probes to capture millivolt-level ripple. Unlike standard passive probes, our tools provide the offset range and bandwidth necessary to see the high-frequency noise riding on your 0.8V to 1.2V rails.

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StepLoad Pro   with SEPIA

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Stability measurement and post-processing with SEPIA by Picotest integration happen in less than a minute. All you need is a computer and an existing test setup. 

Why Partner with Signal Edge Solutions?

A measurement without context is just a waveform. Because our team excels in both simulation and measurement, we don't just hand you a report of "Pass/Fail." If a design fails to meet its targets, we utilize our modeling expertise to suggest the specific layout or BOM changes needed to fix it.

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Stop guessing and start measuring. Schedule a Lab Consultation with Signal Edge Solutions

SI/PI Measurement Insights

At Signal Edge Solutions, we strive to solve the most challenging problems in SI/PI test, measurement, and simulation. Our team of experts is always developing educational resources and sharing insights. Check out some of our suggested reading below.​​

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