How to Test DisplayPort 2.1 Transmitter Compliance

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XR8 Oscilloscope
+ XR8 Oscilloscope
XR8 Oscilloscope
+ XR8 Oscilloscope

Ensuring DisplayPort UHBR Compliance with Test Automation

Validating DisplayPort ultra-high bit rate (UHBR) devices requires transmitter compliance testing against the DisplayPort 2.1 specification to ensure reliable interoperability and certification readiness. Engineers need a >21 GHz real-time oscilloscope, advanced signal integrity and jitter analysis, and automated compliance software to accurately measure UHBR10, UHBR13.5, and UHBR20 performance across standard DisplayPort, mini DisplayPort, and USB-C® connectors.

Testing becomes increasingly complex at ultra-high bit rates due to severe channel loss, tighter jitter and noise margins, and the need to correctly apply and validate transmitter and receiver equalization. Managing test fixtures, cable effects, multi-lane measurements, and link training while ensuring repeatable, specification-compliant results can be time-consuming and error-prone without automation.

DisplayPort 2.1 UHBR Transmitter Compliance Test Solution

DisplayPort 2.1 UHBR transmitter compliance testing requires an oscilloscope with at least 21 GHz bandwidth. The Keysight DisplayPort 2.1 UHBR Transmitter Compliance Test Solution combines a Keysight XR8 oscilloscope with the DisplayPort UHBR transmitter test automation software, advanced signal integrity, and jitter analysis software to guide setup, automate testing, optimize equalization at TP2 and TP3EQ, de-embed fixtures and cables, and generate clear pass/fail results, enabling engineers to efficiently debug, characterize, and validate DisplayPort 2.1 source devices.
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