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Tektronix touts lowest noise sol'n for M-PHY measurements

20 Nov 2014

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Tektronix Inc. has released what it says is the first physical layer transmitter characterisation and debug solution for the MIPI M-PHY v3.1 specification that has been recently approved by the MIPI Alliance. The solution includes support for MIPI M-PHY High Speed Gears 1, 2 and 3, PWM Mode (G0-G7) and SYS Mode, and provides the industry's lowest noise solution for MIPI M-PHY measurements when used with Tektronix MSO/DPO 70000DX oscilloscopes and P7600 series probes, indicated the company.

MIPI M-PHY serial interface technology is gaining broad adoption for next generation mobile devices, offering high bandwidth, low pin count and very good power efficiency. The latest v3.1 specification provides an even more robust low power PHY and presents some significant challenges for oscilloscope measurements and probing including minimising common mode loading on the device under test (DUT) and signal fidelity requirements such as wide bandwidth, low noise and high sensitivity. Tektronix solutions are uniquely positioned to meet the needs of engineers testing next generation MIPI M-PHY transmitters.

Noise and jitter separation for M-PHY signal

An example of noise and jitter separation for M-PHY signal displayed using full contour BER

Testing MIPI M-PHY transmitters running in high-speed mode requires a scope and probe system with rise time 3X faster than the signal rise time, sensitivity of 200mVFS, minimal added noise (<1 or 2mVrms), and high return loss as specified in the MIPI M-PHY standard. Tektronix MSO/DPO 70000DX oscilloscopes and P7600 series TriMode probes are the only measurement system available that can meet these requirements while also providing convenient and consistent bus termination for HS measurements with low noise and high sensitivity.

For debug and analysis, the Tektronix M-PHYTX test solution along with Tektronix Visual Trigger and DPOJET Jitter and Timing Analysis enables engineers to quickly and confidently identify and debug issues during device characterisation. For MIPI M-PHY receiver testing, Tektronix offers both BERT and cost-saving arbitrary waveform generator (AWG) solutions. Competitive offerings are limited to BERT-based options.

In addition, Tektronix with its solution partner Prodigy provides a protocol decode solution for SSIC, the bus interface between the applications processor and interfaces such as modem, companion chips and WLAN. Tektronix also provides full protocol decode and analysis solution for MIPI M-PHY, MIPI DigiRF v4, MIPI UniPro and MIPI LLI protocols.

Option MIPI M-PHY is available worldwide. Pricing for the latest option is $1,220.

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