Multi-rate switched capacitor filter design with aggressive sampling-rates: filtorX in action
Why this work is in the frame
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Bibliographic record
Abstract
A methodology to accurately design multirate switched-capacitor (SC) filters is derived. Multirate SC filter design is an effective means of minimizing silicon area for bandpass systems. The theory derived allows designs to achieve maximal area savings by employing sampling rates approaching the minimum allowed by sampling theory. Designing filters to simultaneously operate at different sampling rates can require numerical optimization to correct for the effects of multirate operation, filtorX, a computer-aided filter design tool, was employed to design a CCITT V.22 high-band modem filter as a test of the derived design methodology. The result was an improvement of the uncorrected multirate filter, which had exceeded passband tolerances, to one which was within tolerances. The multirate filter, operating at sampling rates of 128 kHz and 8 kHz, required 70% less capacitor area than the equivalent single-rate filter operating at a sampling rate of 128 kHz.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 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 it