Analog for Digital Engineers · All levels
Analog Metrics Reference
Core metrics for noise, jitter, settling, linearity, and mixed-signal integration health.
Core metric families
Clock quality: phase noise profile, integrated jitter, spur levels, and lock behavior.
Converter quality: ENOB/SNDR/SFDR plus INL/DNL and settling residuals.
Loop quality: phase margin, bandwidth, peaking, and disturbance rejection.
Noise/SI: white/1-f decomposition, PSRR-vs-frequency, alias-folding margin.
Execution: time-to-root-cause and post-fix recurrence trend.
diagram
EVIDENCE MATRIX - Analog closure
+-----------------------------+--------------------------------+--------------------------------+---------------------------+
| Evidence | Tells you | Does not prove | Next action |
+-----------------------------+--------------------------------+--------------------------------+---------------------------+
| setup calibration logs | measurement chain validity | mechanism root cause | pair with transfer checks |
| spectrum and jitter plots | frequency-domain behavior | ownership of failure | correlate with activity |
| PVT corner overlays | sensitivity distribution | runtime workload equivalence | add workload replay |
| model-vs-silicon deltas | assumption mismatch classes | direct fix correctness | test bounded mitigation |
| before-after matrix | mitigation movement | long-term field drift | run stress suites |
+-----------------------------+--------------------------------+--------------------------------+---------------------------+