A 2.4 Vpp, 60-Gb/s, mm-Wave DAC-Based CMOS Driver with Adjustable Amplitude and Peaking Frequency
Bibliographic record
Abstract
A 60-Gb/s CMOS driver employing mm-wave DACs to achieve broadband waveshape control and pre-emphasis at different peaking frequencies is presented. It features a modified distributed amplifier (DA) architecture that achieves low-voltage and high-speed summation of both low-pass and reactively-coupled bandpass signal paths along an output transmission line. Using binary-weighted MOSFET gate fingers in Gilbert-cell based DACs, the circuit can supply variable output swing up to 1.2V peak-to-peak per side in a 50Ω load and independent digital pre-emphasis control at 25 GHz, 35 GHz and 45 GHz, respectively. S-parameter measurements of the entire retimed transmitter show 60dB of differential gain, while the standalone DA exhibits approximately 10 dB of peaking control in each of the three frequency bands. Input and output return loss is better than - 10 dB up to 60 GHz. The entire circuit, including the transimpedance-limiting-amplifier-retimer, operates from 1.2V and 2V supplies and achieves a throughput efficiency of 12.2 mW/Gb/s.
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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 | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".