Analog for Digital Engineers · All levels

Analog Debug & Bench Correlation

Practical bench measurement, spectrum/noise interpretation, mixed-signal failure isolation, and correlation of silicon data to simulation and signoff assumptions.

Section goal

Practical bench measurement, spectrum/noise interpretation, mixed-signal failure isolation, and correlation of silicon data to simulation and signoff assumptions.

How to study this section

Start with each topic hub and restate the mechanism in your own words.
Use reports and debug pages to classify first failing boundaries.
Practice worked examples and interview drills under fixed setup metadata.
Close with checklist and execution impact before signoff claims.

Topics

analog-bench-measurement/ - Bench Measurement of Analog Blocks
spectrum-and-noise-measurement/ - Spectrum Analyzer, Noise Floor, and FFT Measurement
mixed-signal-debug/ - Debugging Mixed-Signal Failures
analog-signoff-correlation/ - Correlating Silicon Analog Data to Simulation and Signoff

Analog deep dive

Bench-to-signoff correlation is an engineering loop: setup integrity, evidence quality, and model updates.

Concept diagram

diagram

CORRELATION LOOP

bench setup -> measured behavior -> model comparison -> signoff updates

Metric graph

diagram

DEBUG CONVERGENCE

artifact-poor iterations  ███████
evidence-led iterations   ███████████

Metrics and artifacts to collect

measurement uncertainty log
FFT/spectrum setup reconciliation
cross-domain timeline capture
silicon-model delta tracker

Mini case study

A persistent performance mismatch closed only after de-embedding and corner-equivalence assumptions were audited.

Debug branches

Verify setup floor and calibration before blaming silicon.
Synchronize firmware/digital/analog captures into one timeline.
Convert each mismatch into model and guard-band updates.

Senior review question

Ask: which source-path-victim boundary failed first, and which artifact proves it reproducibly?

Practice this lesson

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