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N5991HP1x HDMI 2.1 Receiver Compliance Test Automation Platform

Data Sheets



This datasheet outlines the covered HDMI 2.1 receiver compliance tests, instrument requirements as well as requirements for the PC the test automation software is running on.

N5991 Product Line

High-speed digital standards are quickly evolving to keep pace with emerging technologies such as 5G, Internet of Things (IoT), artificial intelligence (AI), virtual reality (VR), and autonomous vehicles.

Each generational change introduces new test challenges for your digital designs. You need to test your high-speed digital designs across all product development stages — from design and simulation to analysis, debugging, and compliance testing. The N5991 product line anticipates test challenges, optimizes performance, and accelerates time-to-market of your high-speed computing interfaces, datacenter connections, and consumer electronics.

Supported standards, which include PCIe, SAS, SATA, USB, HDMI, DisplayPort, and MIPI C-PHY. Other standards will be continuously added with the requirements for higher data-speed testing.

• Guided setup with automated fast stress signal calibration and compliance measurement functions 

• Modern look and feel with enhanced functionalities 

• System modularity allows the user to enable only required functionalities 

• HTML reports  

• Node-locked and transportable licenses 

• Characterization mode for in-depth testing 

• Single- and multi-lane device testing


Turn your instruments into a solution


An efficient test strategy is a proven competitive advantage. The Keysight Technologies N5991 is the successor to the well-known industry standard N5990A test automation software platform. It follows the same concept – combining the performance of your instruments with the convenience of your PC. The system’s software provides unprecedented test integration, high-throughput, and ease-of-use for a wide range of stimulus and response systems, providing a level of control that transforms a collection of instruments into a universal, user-friendly, and highly productive test solution.


Standardize your tests


The N5991 receiver-test options provide dedicated receiver compliance tests for popular and emerging digital buses. The user can choose compliance mode for fast reassurance, or characterization mode for in-depth analysis. The Receiver Test Automation Platform’s compliance testing capabilities have been repeatedly proven at interoperability workshops (“plug fests”). The N5991 builds on the success of previous generations to deliver significant gains in productivity. Like its predecessor, the N5990A, the new system makes it easy to test multiple buses by using the same interface for all available standards. It delivers additional gains by using familiar HTML for reporting results.


Test selection and test results


The test automation software platform lets you select tests from an intuitive tree structure with multiple levels of detail. Select the tests you want to run, together with the number of repetitions. Test results are provided in HTML format. When you measure a parameter range, it delivers a specific graph and a related data table (see Figure 2).


N5991HP1A HDMI 2.1 Receiver Tests


N5991HP1A HDMI electrical performance validation and compliance software solution offers a complete test execution environment for validating and troubleshooting the electrical performance of HDMI 1.4 and HDMI 2.1 sink devices. The N5991 HDMI software guides you through the whole process – from setup to analysis of results. The intuitive graphical user interface for this process allows you to select the specifics of test such as configuring test setup and test system connection, as well as the initial calibrations that will govern the product’s required test plan. The test algorithms have been certified through HDMI Forum sponsored test event qualification and are officially approved by the HDMI Forum. In HDMI 2.1, with the introduction of new video transport method (fixed rate link) where the data rate of each data channel to 12 Gbps, the new ultra-high-speed Category 3 connector and cable specifications requiring new test regimen, and enhanced audio return channel (eARC) capability. N5991 ValiFrame Software also offers Superior intra-pair skew performance with less than one picosecond of accuracy for FRL testing


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