Oscilloscope News

Keysight D PHY04 May 2017 -Keysight now offers a transmitter and receiver test solution based on the MIPI Alliance’s D-PHY v2.0 and v2.1 specification and C-PHY v1.0 and v1.1 specification and conformance test suite (CTS). The solution also supports MIPI Alliance’s system power management interface (SPMI) specification protocol decoder for battery-operated Internet of Things (IoT) and mobile devices.

The test solution consists of the Keysight U7238E MIPI D-PHY compliance test software and the U7250A MIPI C-PHY compliance test software for Infiniium, as well as the Keysight DSAV164A digital oscilloscope for transmitter test and the Keysight M8085A MIPI Receiver Test Solution software package running on the M8195A or M8190A arbitrary waveform generator for receiver test.

The MIPI Alliance’s new MIPI D-PHY and C-PHY specifications address several rapidly changing markets. For the virtual reality (VR) and augmented reality (AR) markets, each specification supports up to 9 Gbps and 11.4 Gbps (5Gsps) for the camera interface, enabling 8K 60Hz video recording. For the autonomous car market, which requires multiple camera modules and sensors for detecting environmental conditions instead of human’s eyes, the new specification is important because it addresses the low latency and virtual channel support requirements without increasing cable harness weight.

Supporting these different markets requires higher data rate and more complex validation testing, which will become more challenging to the test and validation engineers versus previous specifications.

"Having adequate testing solutions for MIPI interface standards is an essential cornerstone for ecosystem enablement," said Joel Huloux, chairman of the MIPI Alliance board of directors. "Great to see that Keysight Technologies demonstrates their continuous support of MIPI standards with updated solutions that address current and future testing requirements."

For future testing needs, the Keysight solution can also provide an 8 Gbps D-PHY signal in one M8195A AWG module, and can synchronize two or more M8195A modules to generate a 16 Gbps D-PHY signal. For C-PHY, the test solution can generate up to 8 Gsps C-PHY signal.

IoT environmental devices depend on highly efficient batteries that last a long time and require less charging. The MIPI Alliance recently released a new interface to manage battery interface—the system power management interface (SPMI). Keysight’s N8845A application decodes SPMI data from its Infiniium oscilloscope. This application helps reduce development time by providing proper triggering on specific packet and detailed decoding information.

“Keysight’s MIPI test solution helps enable technical innovation in the mobile industry, providing a solution that ensures conformance to the evolving standards and data rates,” said Kailash Narayanan, vice president and general manager of Keysight’s Wireless Devices Segment. “Working with the MIPI Alliance and industry leaders allows us to offer a complete solution that covers the new MIPI D-PHY v2.0 and v2.1 specification and the C-PHY v1.1 specification and CTS test.”


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