HDMI standards continue to evolve to deliver high quality video and audio. With each successive generation, HDMI source developers face faster data rates and new test challenges. HDMI 2.1 increases data rates up to 48 Gbps (Giga bits per second) over 4 lanes, expanding test cases and test times. Differential, eye diagram and single-ended measurements require high signal integrity with the lowest noise to accurately measure device performance.

Enhanced Audio Return Channel (eARC) is a new feature in HDMI 2.1, which simplifies audio connectivity and supports the most advanced audio formats and highest audio quality. eARC improves the differential audio information over single ended signaling and utilizes the IEC61937 specification. To test for eARC compliance, developers need an affordable, easy-to-use, comprehensive and fast measurement solution.

DisplayPort (DP) is a newer standard originally developed to support the higher performance and flexibility requirements of personal computers. In addition to higher performance, it also provides a more robust and error-free digital A/V link. Since DisplayPort is packet based and leverages the signaling technology common in other modern high-speed data interfaces, it can be combined with other standards such as USB and Thunderbolt™.

Tektronix offers test solutions for HDMI, eARC, DisplayPort as well as the new USB Type-C. We will discuss the various challenges in testing these interfaces and introduce tools to help you perform the electrical compliance test.

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