How to Analyze GDDR7 Transmitter Jitter

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

Decompose and Analyze Jitter in GDDR7 Devices

Analyzing jitter in GDDR7 transmitter signals is challenging because timing variations in high-speed PAM3 signaling reduce sampling margin and increase bit error rate. Random noise, inter-symbol interference, and periodic disturbance sources combine to produce complex jitter behavior that is difficult to isolate and quantify. Engineers must separate total jitter into its components to understand the root causes of timing uncertainty. These effects impact artificial intelligence (AI) accelerators and graphics processing units (GPUs) where timing margin determines overall system reliability.

Engineers use a high-bandwidth oscilloscope with advanced jitter analysis software to capture waveform data and extract time interval error (TIE) for statistical evaluation. The system applies clock recovery and processing algorithms to generate jitter histograms and bathtub curves, enabling decomposition of total jitter into random and deterministic components. These tools provide repeatable measurements for analyzing timing behavior and its impact on system performance.

GDDR7 Transmitter Jitter Analysis Solution

GDDR7 transmitter jitter analysis requires precise extraction and decomposition of timing variations to understand their impact on signal integrity and bit error rate. Keysight's GDDR7 transmitter jitter analysis solution includes a high-performance oscilloscope with advanced jitter analysis software that automates TIE extraction, histogram generation, and BER bathtub curve analysis. The solution separates random and deterministic jitter components, allowing engineers to identify root causes of timing uncertainty and quantify their contribution to overall system margin.
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See Block Diagram of GDDR7 Transmitter Jitter Analysis Solution

Block diagram of GDDR7 transmitter jitter analysis solution

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