A 4-Gbps POF Receiver Using Linear Equalizer With Multi-Shunt-Shunt Feedbacks in 65-nm CMOS
Why this work is in the frame
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Bibliographic record
Abstract
This brief describes the design of a monolithic plastic optical fiber (POF) receiver with a pair of 250-by-250 μm N-well/P-sub photodetectors (PDs). A two-stage continuous-time linear equalizer that utilizes multiple active shunt-shunt feedback networks has been proposed to compensate for the slow-rolling-off high-frequency losses of the PDs. A test chip has been implemented in a standard 65-nm CMOS process, and it consists of a transimpedance amplifier, a variable-gain amplifier, a linear equalizer, a limiting amplifier, and an output buffer. The receiver consumes an active chip area of 0.24 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> and a dc power of 46 mW (excluding auxiliary test circuits and the output buffer) from a 1-V power supply. The prototype POF receiver demonstrates a non-return-to-zero data rate of 4 Gbit/s with a bit error rate less than 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-12</sup> , at a peak-to-peak optical input power of - 3.2 dBm p-p (average input power is kept at -3 dBm).
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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