Compliance test software meets MHL 3 specification

Leading manufacturers are implementing MHL technology in consumer 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. 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.

It 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 MHL 1, MHL 2 and MHL 3 test suites and a cable model and equaliser setup for complete control in what-if analysis as well as standard compliance testing.

The software also offers user-defined mask setup to suit individual company goals as well as standard masks required in compliance testing and DUT automation control for MHL 3 unattended testing using Simplay Labs test accessories.

Other features are saved waveform analysis to import waveforms for remote support or offline analysis and 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 Keysight 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. BitifEye products include test fixture and an MHL upgrade of BitifEye’s frame generator software.