electrical.adc.snr

Three distinct suites: educational examples on the calculator page, this legacy regression count (17/17 golden + boundary), and the CVP verification suite below. They are not the same number. Property, metamorphic, round-trip, O3, and interface statuses/checks are recorded in the CVP Manifest . SKIP (0/0) means that suite has no published vectors.

This calculator CURRENT · Public schema 1.1.0 matches · Semantic contract ✓ · Production attested · Public/cache ✓ · Origin ✓

CVP verification suite

Protocol checks from the Evidence Manifest. Distinct from the legacy regression suite above. Calculation version 1.1.0. CVP 1.0.0-proposed. 4/4 golden · 7/7 CVP boundary · 6/6 invalid · 3/3 property · 4/4 metamorphic · 3/3 round-trip · 2/2 cross-interface · 16/16 CVP contract. digest ea962986abea.

• Golden (oracle-backed) 4 / 4
• CVP boundary 7 / 7
• Invalid input 6 / 6
• Property 3 / 3
• Metamorphic 4 / 4
• Round-trip 3 / 3
• Cross-interface 2 / 2
• CVP contract 16 / 16
• Interfaces PASS · UI (SSR) / REST / MCP
• Interface claim ui-ssr is query-result HTML, not a live browser session.
• Assurance Engineering

• release artifacts aligned PASS
• contract page version PASS
• contract capability version PASS
• contract input schema version PASS
• contract output schema version PASS
• evidence version matches manifest PASS
• schema output required declared PASS
• schema valid input executes PASS
• engine success output validates schema PASS
• schema rejects incomplete input PASS
• runtime input validates against schema PASS
• runtime output validates against schema PASS
• evidence cases conform to schema PASS
• page spec matches capability PASS
• catalog description matches capability PASS
• category card matches capability PASS
• search index metadata matches capability PASS
• rest success payload validates schema PASS

Fingerprint sha256:9a2cde6e26a1e45df72c18f01846f2cec7938ef4597156697fc766d2c5f61f74

Input schema sha256:6269973fa3522ebfe4b11be9526bce77048aafeb7b500d01e52ead0c88e57f65 · Output schema sha256:7e002ad78e61c7c7a8c40fbe97fa039d0f14faf782a6b6619039518e3cc13bd0 · Build-time SHA-256 digests prove published artifacts agree with each other (release_integrity.scope=workspace). Production attestation GETs canonical URLs twice (public/cached view and origin), including Capability HTML, via npm run attest:production --write (published at /.well-known/calculatorx-production-attestation.json) and fails if the public Capability page advertises a different calculation_version. This is artifact consistency, not an independent immutable release log.

Tool

adc-snr

Engine

adc-snr

Engine build

2026-09-10

Evidence core

2026-09-05T02:35:39.217Z

Rendered

2026-11-10T05:18:41.760Z

Last reviewed

2026-09-04

Assumptions

• Full-scale sinusoidal input
• Ideal ADC quantizer; quantization noise is uniformly distributed
• No aperture jitter, thermal/reference noise, or harmonic distortion in the ideal-SNR path
• Standard ENOB is derived from SINAD (noise + distortion), not SNR
• n_bits is the ADC nominal integer resolution, not an effective-bits result

Limitations

• Ideal quantization only. ENOB from measured SINAD, not SNR.