A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators
<p>This paper presents a highly efficient digital frequency calibration method for ultra-low-power oscillators in wireless communication systems. This calibration method locks the ultra-low-power oscillator's output frequency to the reference clock of the wireless transceiver during its s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Copernicus Publications
2019-09-01
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| Series: | Advances in Radio Science |
| Online Access: | https://www.adv-radio-sci.net/17/145/2019/ars-17-145-2019.pdf |
| _version_ | 1818754017575043072 |
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| author | M. Scholl R. Wunderlich S. Heinen |
| author_facet | M. Scholl R. Wunderlich S. Heinen |
| author_sort | M. Scholl |
| collection | DOAJ |
| description | <p>This paper presents a highly efficient digital frequency calibration method for ultra-low-power oscillators in wireless communication systems.
This calibration method locks the ultra-low-power oscillator's output frequency to the reference clock of the wireless transceiver during its send- and receive-state to achieve frequency stability over process variation and temperature drifts.
The introduced calibration scheme offers high jitter immunity and short locking periods overcoming frequency calibration errors for typical ultra-low-power oscillator's by utilizing non-linear segmented feedback levels.
In measurements the proposed calibration method improves the frequency stability of an ultra-low-power 32 kHz oscillator from 53 to 10 ppm <span class="inline-formula"><sup>∘</sup></span>C<span class="inline-formula"><sup>−1</sup></span> over a wide temperature range for temperature drifts of less than 1 <span class="inline-formula"><sup>∘</sup></span>C s<span class="inline-formula"><sup>−1</sup></span> with an estimated power consumption of 185 nW while coping with relocking periods of 7 ms.</p> |
| first_indexed | 2024-12-18T05:16:34Z |
| format | Article |
| id | doaj.art-4a842b1fd2bc4453a3f84fc39dfdf34a |
| institution | Directory Open Access Journal |
| issn | 1684-9965 1684-9973 |
| language | deu |
| last_indexed | 2024-12-18T05:16:34Z |
| publishDate | 2019-09-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Advances in Radio Science |
| spelling | doaj.art-4a842b1fd2bc4453a3f84fc39dfdf34a2022-12-21T21:19:46ZdeuCopernicus PublicationsAdvances in Radio Science1684-99651684-99732019-09-011714515010.5194/ars-17-145-2019A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillatorsM. SchollR. WunderlichS. Heinen<p>This paper presents a highly efficient digital frequency calibration method for ultra-low-power oscillators in wireless communication systems. This calibration method locks the ultra-low-power oscillator's output frequency to the reference clock of the wireless transceiver during its send- and receive-state to achieve frequency stability over process variation and temperature drifts. The introduced calibration scheme offers high jitter immunity and short locking periods overcoming frequency calibration errors for typical ultra-low-power oscillator's by utilizing non-linear segmented feedback levels. In measurements the proposed calibration method improves the frequency stability of an ultra-low-power 32 kHz oscillator from 53 to 10 ppm <span class="inline-formula"><sup>∘</sup></span>C<span class="inline-formula"><sup>−1</sup></span> over a wide temperature range for temperature drifts of less than 1 <span class="inline-formula"><sup>∘</sup></span>C s<span class="inline-formula"><sup>−1</sup></span> with an estimated power consumption of 185 nW while coping with relocking periods of 7 ms.</p>https://www.adv-radio-sci.net/17/145/2019/ars-17-145-2019.pdf |
| spellingShingle | M. Scholl R. Wunderlich S. Heinen A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators Advances in Radio Science |
| title | A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators |
| title_full | A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators |
| title_fullStr | A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators |
| title_full_unstemmed | A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators |
| title_short | A low complexity digital frequency calibration with high jitter immunity for ultra-low-power oscillators |
| title_sort | low complexity digital frequency calibration with high jitter immunity for ultra low power oscillators |
| url | https://www.adv-radio-sci.net/17/145/2019/ars-17-145-2019.pdf |
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