Keysight Introduces PAM3 Signaling with New GDDR7 Transmitter Compliance Solution for Next-Generation Graphics Memory

Shortens Joint Electron Device Engineering Council standard validation cycles for graphics and AI systems requiring high-speed memory interfaces

SANTA ROSA, Calif.–(BUSINESS WIRE)–Keysight Technologies, Inc. (NYSE: KEYS) announced its new graphics double data rate 7 (GDDR7) transmitter compliance solution, that accelerates validation of Joint Electron Device Engineering Council (JEDEC) standards for graphics and artificial intelligence (AI) applications.

Growing demand for high-performance computing, gaming, and AI platforms is driving memory and GPU vendors to adopt GDDR7, but the transition is creating significant validation challenges. GDDR7’s shift from traditional NRZ to pulse amplitude modulation (PAM3) encoding enables higher bandwidth while reducing channel complexity, but it requires new test approaches to ensure signal integrity and interoperability at ultra-high data rates. Keysight’s GDDR7 transmitter test solution addresses this bottleneck, enabling organizations to validate designs while accelerating time-to-market.

The Keysight GDDR7 transmitter test solution consists of D9370GDDC software that runs on Keysight’s UXR oscilloscope series and automates debug and characterization of GDDR7 transmitter designs to ensure compliance with JEDEC JESD239 specifications. When paired with the InfiniiMax Ultra Probe Amplifier, 25 GHz, the solution enables accurate PAM3 signal analysis and timing measurements, allowing engineers to validate and optimize high-speed memory transmitter designs for next-generation GPUs and memory devices.

Key benefits of the Keysight GDDR7 compliance test solution include:

• Validates PAM3 signaling under real-world conditions: Advanced signal-to-noise-and-distortion ratio (SNDR) measurements account for crosstalk, enabling engineers to identify and resolve signal integrity issues.
• Reduces validation time and risk: Automated compliance testing eliminates manual setup and configuration while delivering consistent, repeatable measurements across electrical, timing, jitter, and eye diagrams, helping teams achieve JESD239 compliance faster and with fewer errors.
• Design with confidence at 48 Gbps: A low noise measurement floor enables accurate jitter, electrical, and timing analysis of PAM3 encoding, empowering customers to validate next-generation high-speed interfaces reliably and meet performance targets faster.

The GDDR7 test solution can be paired with Keysight’s UXR oscilloscope and MX0025A InfiniiMax Ultra Probe Amplifier, 25 GHz for system debug, validation, and characterization.

Dr. Joachim Peerlings, Vice President and General Manager, Network and Datacenter Solutions, Keysight, said: “By bringing precise, PAM3-aware SNDR measurements to GDDR7 compliance, Keysight is helping the industry shorten validation cycles, reduce interoperability risk, and deliver reliable bandwidth despite increasingly complex channels.”

The new solution will be demonstrated at Keysight’s booth (#1039) at DesignCon 2026, Feb. 24-26.

Resources

• Keysight’s GDDR7 transmitter test solution
• Keysight memory solutions

About Keysight Technologies

At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we’re delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product lifecycle. We’re a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world. Learn more at Keysight Newsroom and www.keysight.com.

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