TIME-INTERVAL AND JITTER MEASUREMENTS: MAKE TIMING RESULTS COMPARABLE
Editable planning/verification record — Yenra
Updated: October 2, 2026
Article: https://yenra.com/high-speed-time-measurement/

Purpose: Specify the event definition, instrument setup and uncertainty context needed to interpret repeated timing measurements.
Intended reader: Electronics test engineers comparing timing results or integrating timing instruments.

HOW TO USE
Save a working copy. Enter the actual specification, units, assumptions and evidence references in each field. Preserve original observations and record changes. Have the responsible reviewer resolve missing or conflicting requirements before release. Examples below are fictional teaching inputs, not process settings or acceptance standards.

RECORD
1. Measurement purpose, signal and requirement with units:
   ____________________________________________________________

2. Start/stop event, channel, edge polarity and threshold in V:
   ____________________________________________________________

3. Metric definition, reference/clock recovery and observation bandwidth:
   ____________________________________________________________

4. Instrument, firmware, sample rate, record length and event count:
   ____________________________________________________________

5. Cables, probes, termination, deskew/calibration and timebase reference:
   ____________________________________________________________

6. Raw interval or edge records, exclusions and invalid acquisitions:
   ____________________________________________________________

7. Mean, spread and uncertainty contributors with units:
   ____________________________________________________________

8. Repeated setup/control results and acceptance decision rule:
   ____________________________________________________________


WORKED EXAMPLE AND LIMITS
Fictional periods: 9.98, 10.01, 10.00, 10.02, 9.99 ns. Mean = 10.00 ns. Peak-to-peak period spread = 0.04 ns = 40 ps. Signed differences between adjacent periods are +30, -10, +20, -30 ps; the largest absolute difference is 30 ps. These are five-sample descriptive results, not a long-run jitter or error-rate guarantee.

REVIEW
Prepared by / date: ____________________
Reviewed by / date: ____________________
Open issues, responsible owner, due date: ____________________
Approved next action and evidence: ____________________

SOURCE CONTEXT
These primary references support the linked article. Use exact applicable product, contract, and document versions for operational work.
NIST's time-interval explanation
https://www.nist.gov/pml/time-and-frequency-division/popular-links/time-frequency-z/time-and-frequency-z-ti
Tektronix's jitter application note
https://www.tek.com/vn/documents/application-note/characterizing-and-troubleshooting-jitter-your-oscilloscope

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