How to Test USB4 Version 2.0 Transmitter Compliance

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Infiniium UXR-Series Oscilloscope
+ Infiniium UXR-Series Oscilloscope
Infiniium UXR-Series Oscilloscope
+ Infiniium UXR-Series Oscilloscope

Ensuring USB Version 2.0 transmitter compliance using an oscilloscope

Validating USB devices requires compliance testing for USB-IF certification to ensure seamless interoperability using an oscilloscope. Follow the USB Gen 4 compliance test specification to ensure that you transmit your signals correctly. USB4 Version 2.0 transmitters need to send a 25.6 Gbd / 40 Gb/s PAM3 signal across four differential lanes. Additionally, they must support alternate mode signals and previous generations of the USB standard over Type-C connectors.

USB4 Version 2.0 compliance testing requires an oscilloscope with at least 25 GHz of bandwidth and two channels to analyze signals transmitted by the device under test. New vertical noise margin and retimer measurements, increased equalization presets, and the challenge of analyzing multilevel signals complicate testing. Compliance test software automates the process and reports results, including analysis to show the pass or fail margins for each test.

Self-discharge measurement system

USB4 Version 2.0 transmitter compliance test solution

USB Gen 4 transmitter compliance verification requires an oscilloscope and automated test software to simplify the long, error-prone process of configuring and testing devices at 80 Gb/s. The Keysight USB4 Version 2.0 transmitter compliance test solution includes a Keysight Infiniium UXR-Series real-time oscilloscope with at least 25 GHz bandwidth. The UXR runs the USB 80 Gb/s transmitter compliance test automation software and an advanced analysis software package. This hardware and software combination provides a streamlined solution for debugging, characterizing, and testing USB Gen 4 (USB4 Version 2.0) devices.
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