DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Sujin | ko |
dc.contributor.author | Seol, Ji-Hwan | ko |
dc.contributor.author | Xu, Li | ko |
dc.contributor.author | Cho, Seonghwan | ko |
dc.contributor.author | Sylvester, Dennis | ko |
dc.contributor.author | Blaauw, David | ko |
dc.date.accessioned | 2022-04-13T06:49:32Z | - |
dc.date.available | 2022-04-13T06:49:32Z | - |
dc.date.created | 2022-02-08 | - |
dc.date.created | 2022-02-08 | - |
dc.date.created | 2022-02-08 | - |
dc.date.issued | 2022-04 | - |
dc.identifier.citation | IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.57, no.4, pp.1175 - 1186 | - |
dc.identifier.issn | 0018-9200 | - |
dc.identifier.uri | http://hdl.handle.net/10203/292573 | - |
dc.description.abstract | This article describes an ultralow-power (ULP) temperature-compensated crystal oscillator (TCXO) with a pulsed-injection XO driver for IoT applications. Temperature compensation is achieved by changing the load capacitance (C $_{L}$ ) between two values using a delta-sigma modulator (Delta sigma M). The complex modulation profile across temperature is approximated as piecewise linear elements that is selected by a coarse temperature sensor. As a result, the power and area of fine-grain look-up tables (LUTs) or a polynomial engine used in prior works can be avoided. The proposed pulsed-injection XO driver that directly replenishes the energy of the C $_{L}$ sustains the XO oscillation for the two different C $_{L}$ states. Implemented in 40-nm CMOS, the proposed 32.768-kHz TCXO achieves an accuracy of +/- 4.2 ppm from -20 degrees C to 85 degrees C with just three-point trimming and an Allan deviation floor of 34 ppb while consuming 43 nW, which is an approximate 8x improvement over the recent state-of-the-art TCXOs. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | A 43 nW, 32 kHz, +/- 4.2 ppm Piecewise Linear Temperature-Compensated Crystal Oscillator With Delta sigma-Modulated Load Capacitance | - |
dc.type | Article | - |
dc.identifier.wosid | 000745530000001 | - |
dc.identifier.scopusid | 2-s2.0-85123357767 | - |
dc.type.rims | ART | - |
dc.citation.volume | 57 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 1175 | - |
dc.citation.endingpage | 1186 | - |
dc.citation.publicationname | IEEE JOURNAL OF SOLID-STATE CIRCUITS | - |
dc.identifier.doi | 10.1109/JSSC.2021.3139649 | - |
dc.contributor.localauthor | Cho, Seonghwan | - |
dc.contributor.nonIdAuthor | Seol, Ji-Hwan | - |
dc.contributor.nonIdAuthor | Xu, Li | - |
dc.contributor.nonIdAuthor | Sylvester, Dennis | - |
dc.contributor.nonIdAuthor | Blaauw, David | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Oscillators | - |
dc.subject.keywordAuthor | Temperature sensors | - |
dc.subject.keywordAuthor | Crystals | - |
dc.subject.keywordAuthor | Table lookup | - |
dc.subject.keywordAuthor | Voltage | - |
dc.subject.keywordAuthor | Timing | - |
dc.subject.keywordAuthor | Switches | - |
dc.subject.keywordAuthor | Piecewise linear (PWL) approximation | - |
dc.subject.keywordAuthor | pulse injection XO | - |
dc.subject.keywordAuthor | real time clock (RTC) | - |
dc.subject.keywordAuthor | temperature compensation | - |
dc.subject.keywordAuthor | temperature-compensated crystal oscillator (TCXO) | - |
dc.subject.keywordPlus | REAL-TIME CLOCK | - |
dc.subject.keywordPlus | NOISE | - |
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