A Sample-Time Error Compensation Technique for Time-Interleaved ADC Systems
Bibliographic record
Abstract
Sample-time error among different channels of a time-interleaved analog-to-digital converter (ADC) is a factor in significant degradation of the ADC performance, especially in high frequencies. A two-channel, time-interleaved ADC structure with a background sample-time error compensation technique has been implemented. The sample-time error detection technique uses random data and has been implemented in the digital domain at a low level of complexity. The error correction is performed by adjusting the delay of the clock path of one channel, using a 6-bit digitally-controlled delay element (DCDE). At a sampling rate of 400 MSamples/s, the experimental results show that the spurious-free dynamic range (SFDR) of the ADC system is improved to 58.8 dB at 190 MHz. The ADC system achieves a signal-to-noise-and-distortion ratio (SNDR) of 59.6 dB at 5 MHz and 55.2 dB at 190 MHz after compensation. This error compensation method is especially suitable for time-interleaved ADCs used in digital data communication systems.
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How this classification was reachedexpand
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 | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".