Field Guide to DDR Signal Integrity Analysis
Catch every DDR5 compliance failure in simulation, not on the bench.
A working field guide to the JEDEC measurements that decide DDR signoff: eye width and height, overshoot and ringback, DQ-to-DQS skew, RX mask margins, and the BER reports behind them. See how Sigrity X PowerSI and Sigrity SystemSI verify each one against JEDEC values inside your Allegro design flow.
What’s Inside:
- Know exactly what to measure: The full JEDEC checklist for DDR4, DDR5, and LPDDR, from eye width and eye height through overshoot, undershoot, ringback, jitter margin, noise margin, and interconnect skew, with what each one tells you about signal quality
- Compare against the spec directly: Worked DDR5 acceptable values for each measurement, from eye width and DQ-to-DQS skew to RX mask margins, so your results map straight onto pass or fail
- Model what the receiver actually sees: Build DDR5 channels with the now-required DFE and CTLE using AMI models, then read eye margins off the RX mask the way JEDEC defines compliance
- Analyze where you design: Sigrity X PowerSI extracts board and package parasitics and Sigrity SystemSI runs the bus analysis from the Allegro canvas, so there is no manual re-entry between layout and analysis
- Automate the verdict: The Sigrity DDR compliance kit runs the required tests, checks results against JEDEC values for DDR, LPDDR, and GDDR, and generates pass/fail reports
Read more here.
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