A Low Power 3.12Gbit/s/Channel Parallel Optical Receiver for Very Short Reach (VSR) Applications
Bibliographic record
Abstract
A truly-differential transimpedance amplifier (TIA) for optical receiver front-ends based on common-gate topology is fabricated and tested. -16 dBm sensitivity is achieved for this inductorless TIA at 3.125 Gbit/s while drawing 3.7 mA current from a 1.2 V power supply. The channel power consumption is 22 mW including an input buffer (IB), a limiting amplifier (LA), and a current-mode-logic (CML) output buffer with a 400 mV peak-to-peak differential output swing. We present a method to convert pseudo-differential signals into truly-differential signals by using AC coupling techniques. Also a new method of measuring cross-talk power penalty with an on-chip pseudo-random-bit-sequence (PRBS) generator is introduced. The circuits are implemented in the IBM CMRF8SF-DM 0.13-mum complementary-metal-oxide-semiconductor (CMOS) process
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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 | 0.001 |
| 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 | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.002 |
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".