How to Test PCIe 7.0 Receiver Compliance

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High-Performance BERT
+ High-Performance BERT
High-Performance BERT
+ High-Performance BERT

PCIe 7.0 Receiver Stress Calibration and Validation Workflow

PCI Express (PCIe) 7.0 receiver compliance testing at 128 GT/s is challenging due to the need to validate receiver performance under precisely controlled stressed signal conditions. Reduced timing and voltage margins, combined with four-level pulse amplitude modulation (PAM4) signaling, make receiver behavior highly sensitive to channel loss, jitter, and noise. Engineers must accurately emulate worst-case operating conditions while ensuring that stressed signals meet strict specification limits, making calibration complexity and measurement accuracy critical to reliable validation.

Receiver validation is performed using a high-performance bit error ratio tester (BERT) with sufficient pattern generation and error detection capabilities for PAM4 signals at 128 GT/s, a high-bandwidth oscilloscope for calibration, and receiver test automation software to control instruments and analyze results. The workflow includes transmitter path calibration, channel loss emulation, sinusoidal and random jitter injection, and stressed eye characterization using reference receivers. Automated calibration, fixture characterization, and instrument synchronization is recommended for accurate stress signal generation and repeatable results.

PCIe 7.0 Receiver Compliance Solution

PCIe 7.0 receiver compliance testing requires precise generation and calibration of stressed PAM4 signals at 128 GT/s to accurately validate receiver performance under worst-case conditions. Keysight’s PCIe 7.0 receiver compliance solution includes receiver test automation software, a 120 GBd high-performance BERT, and a 70 GHz Pro oscilloscope to automate TP2 and TP3 calibration, jitter injection, stressed eye measurements, and equalization validation workflows. This integrated solution enables accurate stress signal generation through fixture characterization, synchronized instrument control, and automated calibration, delivering repeatable, standards-aligned validation results for PCI Express Base Specification receiver compliance testing.
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