ANALYSIS TYPE / 04
BER · margin · jitter decomposition
Overview
Simulating complete channel performance at the target bit rate — generating statistical eye diagrams, BER estimates, and full jitter decomposition to evaluate mask compliance and identify margin-limiting contributors.
Deliverables
Key Aspects
Constructing statistical eye diagrams via IBIS-AMI or channel simulation for realistic bit-rate performance assessment, including ISI, random jitter, and deterministic jitter contributions.
Decomposing total jitter into deterministic, random, and bounded uncorrelated components — attributing margin loss to specific physical root causes in the channel.
Projecting bit error rate at target operating margin to confirm compliance with interface specifications such as PCIe, USB 3.x, and DDR eye mask requirements.
Evaluating CTLE, FFE, and DFE equaliser settings to maximise eye opening and determine the optimal TX/RX equalization strategy for the channel under analysis.
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