Ziabakhsh, Soheyl, Gagnon, Ghyslain et Roberts, Gordon W..
2017.
« A time-mode LDI-based resonator for a band-pass ΔΣ TDC ».
In 2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS) (Boston, MA, USA, Aug. 6-9, 2017)
pp. 1296-1299.
Piscataway, NJ, USA : IEEE.
Compte des citations dans Scopus : 3.
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Résumé
In this paper, a time-mode resonator is presented that is used to realize a second-order bandpass ΔΣ time-to-digital converter (TDC). The resonator is constructed as a cascade of two lossless discrete-time integrators implemented using time-latches and some digital logic in a negative feedback configuration. This paper presents for the very first time the means in which time-mode circuits are used in a negative feedback loop. This achieves high-speed time-mode signal processing without the limitations imposed by switched-capacitor (SC) circuit techniques such as the matching of capacitors to realize precise signal gains. Instead, circuit precision is realized using an on-chip calibration circuit referenced to the main system clock to adjust for timing variations in the time-mode circuits. The operation of the timemode resonator is verified by realizing a second-order BP ΔΣ TDC. The bandpass noise-shaping is validated with transistor-level simulations.
| Type de document: | Compte rendu de conférence |
|---|---|
| Professeur: | Professeur Gagnon, Ghyslain |
| Affiliation: | Génie électrique |
| Date de dépôt: | 22 nov. 2017 20:23 |
| Dernière modification: | 05 déc. 2022 19:39 |
| URI: | https://espace2.etsmtl.ca/id/eprint/15974 |
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