Keysight Advanced Design System (ADS) 2022 Update 0.1

PathWave Advanced Design System (ADS) 2022 - that reduces design time and de-risks product development for Double Data Rate 5 (DDR5), Low-Power Double Data Rate (LPDDR5) and Graphics Double Data Rate 6 (GDDR6) memory systems.

From cloud computing to autonomous vehicles, the demand for faster memory interfaces is accelerating. A disruptive technology feature of fast interfaces such as DDR5, LPDDR5 and GDDR6 is equalization on the memory chip’s receivers, which recovers signals degraded by their path through the printed circuit board (PCB). Hardware engineers need to minimize the risk of signal integrity issues in memory bus designs, which requires the ability to predict the signal quality after equalization, prototype the design and test for performance.

Keysight’s PathWave ADS 2022, a design and test workflow for next-generation memory, enables hardware engineers to meet time-to-market requirements and deliver a high-performance, reliable end-product. The Memory Designer in PathWave ADS 2022, addresses the following design challenges:

- Model the transmitter and receiver behavior accurately by generating advanced simulation models of both DDR transmitters and receivers, with flexible equalization and external clock inputs.
- Optimize equalization settings to predict design margins with an advanced simulator that uses adaptive equalization to find the optimal settings for the best signal integrity of the data link.
- Quantify margin to the eye-mask by predicting eye closure down to standard-specific Bit-Error-Rates, and report remaining margin to the eye-mask.
- Find failing conditions with design exploration by generating a batch simulation list to sweep through all possible design parameters and report passing/failing configurations as spreadsheet data.
- Confidence in design sign-off, from design through to test by performing an automated compliance report on simulated signal waveforms and utilizing consistent measurement science to identify issues early and trial potential fixes efficiently.

ADS 2022 Update 0.1 Release Notes - Release: August 31, 2021
ADS 2022 Update 0.1 (minor update release) is a cumulative minor update release installed on ADS 2022 (base release). You can upgrade your existing ADS installation (ADS 2022) to ADS 2022 Update 0.1 without uninstalling any previous minor updates (if available any).

Enhancements
- ADS 2022 Update 0.1 includes enhancements in Circuit Simulation and HSD
Circuit Simulation
Added support for doublequotes nested into singlequotes in hspice.
HSD
- Allow users to change the plot title in s-parameters window.
- Higher default value, 40GHz, for the phase interpolator's parasitic cutoff frequency with single ended PAM4.
- When you double-click the plot title in the S-Parameter toolkit, it allows you to edit the title. Also, you can reset to the default name using the "Set to Default" button.

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