Single-Event Effects Characterization of <i>LC</i>-VCO PLLs in a 28-nm CMOS Technology
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Bibliographic record
Abstract
Two-photon absorption laser experiments are conducted on a low-jitter tunable hybrid analog-digital LC-tank phase-locked loop (PLL) in a 28-nm bulk CMOS technology. The single-event effect (SEE) sensitivities for different blocks as well as the effect of varying circuit parameters are analyzed. The analog loop filter and the inductor-varactor area in the voltage-controlled oscillator (VCO) LC tank are identified as the most sensitive areas of the PLL, which generally agrees with previous studies. The VCO tail common-mode node, which was previously shown to be highly sensitive to SEE, exhibits very good robustness, thanks to the proposed second-order harmonic LC tail filter added in this design. The laser experiments show that a lower PLL bandwidth tends to reduce the SEE sensitivities of the PLL, while the results on the effect of the VCO frequency are mixed and need further study.
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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 | 0.002 |
| 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 |
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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