Keysight software enables compliance testing for MHL 3

Technology News |
By eeNews Europe

MHL, now becoming prevalent in its version 3, is driven by MHL consortium founders Nokia, Samsung, Silicon Image, Sony, and Toshiba and supports 4K high-definition video and 7.1 surround-sound audio. Leading consumer electronics manufacturers are implementing MHL technology in products such as tablets, mobile phones and automotive audiovisual accessories, which requires them to pay close attention to device interoperability. The MHL 3 specification, published in August 2013, offers a significant increase in bandwidth (up to 6 Gbps) to support higher resolution and a new bidirectional high-speed communication path between the portable device and a display.

Keysight’s N6460B transmitter compliance solution builds on its MHL 2 transmitter compliance test software that is also currently used worldwide in MHL authorized test centers. The new software offers test capabilities now required for MHL 3 transmitters, such as a dedicated TMDS lane and new functionality in the CBus, referred to now as eCBus, that includes forward and reverse transmission validation.

The Keysight MHL 3 compliance software includes new features along with test suites for all previous versions of MHL, which are required to validate interoperability of MHL 3 devices. The software feature set includes:

  1. MHL 1, MHL 2 and MHL 3 test suites
  2. Cable model and equalizer setup for complete control in what-if analysis as well as standard compliance testing
  3. User-defined mask setup to suit individual company goals as well as standard masks required in compliance testing
  4. DUT automation control for MHL 3 unattended testing using Simplay Labs test accessories
  5. Saved waveform analysis to import waveforms for remote support or offline analysis
  6. User comments for in-depth details in test reports
  7. Calibration test suites for MHL TMDS receiver test as well as source device eCBus receiver testing.

Full MHL 3 link analysis requires Keysight’s receiver cable compliance testing solutions, including E4887A TMDS signal generators, the M8190A arbitrary waveform generator and N5990A factory automation software. The receiver compliance solution is complemented by products from Keysight’s solutions partner BitifEye. These products include test fixture and an MHL upgrade of BitifEye’s frame generator software.

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