Bibliographic record
Abstract
This paper presents a fourth-order tunable continuous time (CT) bandpass (BP) sigma-delta modulator with fractional delays (fSigmaDelta) fabricated in 0.5 mum/fT= 47 GHz SiGe technology. The modulator is a fully differential gm-C based circuit powered from from a 3.3 V supply and occupies 2.3 mm times 2.3 mm. At sampling rates from fs= 600 MHz to fs= 1.2 GHz and a single-tone input signal, within a bandwidth of BW = 20 kHz, the modulator demonstrates maximal SNR = 50 dB and maximal dynamic range DR = 47 dB. The center frequency notch of the noise transfer function (NTF) is tunable from 185 MHz to 289 MHz, while the resonator itself can achieve 60 MHz to 295 MHz. This prototype design experimentally confirms validity of the suggested analytical models and design methodology.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".