Clarius Compliance DisplayPort 1.4 Transmitter Test Solution

Tektronix provides the most comprehensive solutions to meet the needs of engineers designing DisplayPort silicon for computer systems and embedded systems, as well as those validating the physical layer compliance of DisplayPort devices to the DisplayPort 1.4 Compliance Test Specification. The Clarius Compliance DisplayPort application is compatible with Tektronix DPO/MSO 70000 DX/SX series oscilloscopes that are designed to meet the challenges of the next generation of display standards.

The Clarius compliance platform is a new generation compliance test automation software platform. The platform offers a range of features and benefits

• Higher asset utilization and faster test times: disaggregated architecture to offload analysis from the oscilloscope
• Easy workflow integration: leverage REST APIs and SDK for faster automation
• Integrated data management for results, reports, and waveforms in the UI, along with a dashboard view

Key features

• Complete compliance testing of data rates RBR, HBR, HBR2, and HBR3 for DisplayPort 1.4
• Supports DP, mDP, and USB-C connectors
• Automated CTLE optimization
• Intelligent pattern recognition before test execution
• Fixture de-embed feature: Use the default filter file for de-embedding fixture effect or create a custom filter file using SDLA software to leverage the channel modeling and receiver equalization functionality.
• Easy option to support repeatability of measurements
• Complete DUT automation for hands free testing
• Reports available in .pdf, and .csv formats for advanced data analysis
• Supports DPR100 and UCD323 DUT control

DisplayPort compliance testing

DisplayPort sources (transmitters) have state control requirements in order to transmit the data patterns and signal properties required to demonstrate conformance as per the compliance test specification. The following properties and patterns need to be transmitted for full measurement coverage:

• Bit rates: RBR, HBR, HBR2, and HBR3
• Data patterns: D10.2, PRBS7, COMPEYE, PLTPAT, and TPS4
• FFE (pre-emphasis): 0 dB, 3.5 dB, 6 dB, and 9.5 dB
• Output levels: 400 mV, 600 mV, 800 mV, and 1200 mV
• SSC (spread spectrum): On/Off

Compliance to characterization support

Tektronix offers DisplayPort DPOJET plugin that can be used to characterize a DUT and analyze its finer behavior. It serves as an analysis tool when the DUT fails any portion of the compliance tests or you want to take a deeper look into the failures. All the compliance tests which are supported in the application and requires a single acquisition are supported in this package. You can build automation scripts around these measurements to setup a custom test environment.

SDLA features

SDLA enables you to probe and visualize data at the required location (de-embed/embed) using virtual the probing through test points. It can remove (de-embed) the effects of the cables, probes, and fixtures to get more accurate measurement results. It can embed user defined channel models to simulate the signal at the end of the link. It can also be used to open a closed eye using receiver equalization, Continuous Time Linear Equalizer (CTLE), Decision Feedback (DFE), or Feed Forward Equalization (FFE). SDLA also has advanced analysis and modeling capabilities. One can view and measure multiple test points using DPOJET Jitter and Eye analysis comprehensive frequency and time domain plots, enable quick verification of S-parameters and test point transfer functions.