The shift from traditional NRZ to PAM3 encoding in GDDR7 allows for greater bandwidth and reduced channel complexity, but it requires new testing approaches to ensure signal integrity and interoperability at ultra-high data rates. Keysight's GDDR7 Transmitter Test Solution addresses this bottleneck, enabling design validation and accelerating time to market. Keysight's
GDDR7 Transmitter Test Solution consists of the D9370GDDC software, which runs on Keysight's UXR series oscilloscopes and automates the debugging and characterization of GDDR7 transmitters to ensure compliance with the JEDEC JESD239 specification. When combined with the 25 GHz InfiniiMax Ultra Probe Amplifier, the solution enables precise PAM3 signal analysis and timing measurements, helping engineers validate and optimize high-speed memory transmitter designs for GPUs and next-generation memory devices.
Key benefits of Keysight's GDDR7 compliance testing solution:
Real-world PAM3 signal validation: Advanced signal-to-noise ratio and distortion (SNDR) measurements account for crosstalk, enabling the identification and resolution of signal integrity issues.
Reduced validation time and risk: Automated testing eliminates manual setup and provides consistent, repeatable measurements of electrical, timing, jitter, and eye diagrams, facilitating faster and less error-free JESD239 compliance.
Reliable 48 Gbps design: A low-noise measurement floor enables accurate analysis of jitter, electrical, and timing signals in PAM3 encoding, helping to validate high-speed interfaces and achieve performance targets faster.
The GDDR7 solution can be integrated with the UXR oscilloscope and the MX0025A InfiniiMax Ultra Probe 25 GHz amplifier for debugging, validation, and system characterization.
Dr. Joachim Peerlings, Vice President and General Manager of Network and Datacenter Solutions at Keysight, commented:
"By offering accurate and PAM3-aware SNDR measurements for GDDR7 compliance, Keysight helps the industry shorten validation cycles, reduce interoperability risk, and deliver reliable bandwidth despite increasingly complex channels."
