How to Test MIPI M-PHY 6 Transmitter Compliance

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Pro Benchtop Oscilloscope
+ Pro Benchtop Oscilloscope
Pro Benchtop Oscilloscope
+ Pro Benchtop Oscilloscope

PAM4 Signal Quality Measurement and MIPI CTS Validation Workflow

MIPI M-PHY 6 transmitter compliance testing pushes signal integrity measurement to its limits at data rates up to 23.3 GBd using pulse amplitude modulation 4 (PAM4). Reduced voltage margins, multi-level signaling, and sensitivity to noise, jitter, and nonlinearity make accurate characterization difficult after channel effects and equalization. Small calibration errors in fixtures, de-embedding, or waveform acquisition directly distort signal-to-noise-and-distortion ratio (SNDR), eye opening, and timing measurements, making it difficult to verify compliance with the Compliance Test Specification (CTS) and quantify true transmitter performance.

Engineers validate MIPI M-PHY 6 transmitters using a high-bandwidth real-time oscilloscope (typically greater than 50 GHz) and compliance software that executes CTS-defined measurement algorithms. The workflow starts with configuring the transmitter into standardized test modes and capturing PAM4 waveforms through a calibrated measurement path. The oscilloscope then calculates SNDR, jitter, duty cycle distortion, and differential nonlinearity, performing eye diagram analysis using PAM4 compliance masks to confirm signal quality, timing behavior, and compliance across defined CTS test conditions.

MIPI M-PHY 6 Transmitter Compliance Test Solution

MIPI M-PHY 6 transmitter compliance testing requires precise PAM4 waveform acquisition and analysis to validate signal quality against CTS-defined limits. Keysight's M-PHY 6 transmitter compliance solution includes automated test software and a 59 GHz Pro benchtop oscilloscope to execute SNDR, jitter, eye diagram, and timing measurements using standardized CTS methods. This integrated solution enables calibrated waveform capture, automated test execution, and repeatable compliance validation, delivering accurate, standards-aligned results for MIPI M-PHY 6 transmitter characterization.
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See Block Diagram of MIPI M-PHY 6 Transmitter Compliance Test Solutions

Block Diagram of MIPI M-PHY 6 Transmitter Compliance Test Solution

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