The LC-based Digitally Controlled Oscillator (DCO) is one of the most important components of all digital phase locked loops. The performance of the loops is significantly determined by the DCO's frequency resolution. In order to enhance the frequency resolution, we propose a mismatched capacitor pairs based digitally controlled switched capacitance array, which dramatically reduces the minimum switched varactor capacitance. Furthermore, we implement a DCO based on our proposal in SMIC 0.18 µm and conduct simulation in Spectre. The simulation results show that the frequency resolution is enhanced compared with the existing methods.
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Depeng JIN, Guofei ZHOU, Yong LI, Shijun LIN, Li SU, Lieguang ZENG, "High Frequency Resolution DCO with Mismatched Capacitor Pairs" in IEICE TRANSACTIONS on Electronics,
vol. E93-C, no. 2, pp. 208-210, February 2010, doi: 10.1587/transele.E93.C.208.
Abstract: The LC-based Digitally Controlled Oscillator (DCO) is one of the most important components of all digital phase locked loops. The performance of the loops is significantly determined by the DCO's frequency resolution. In order to enhance the frequency resolution, we propose a mismatched capacitor pairs based digitally controlled switched capacitance array, which dramatically reduces the minimum switched varactor capacitance. Furthermore, we implement a DCO based on our proposal in SMIC 0.18 µm and conduct simulation in Spectre. The simulation results show that the frequency resolution is enhanced compared with the existing methods.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.208/_p
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@ARTICLE{e93-c_2_208,
author={Depeng JIN, Guofei ZHOU, Yong LI, Shijun LIN, Li SU, Lieguang ZENG, },
journal={IEICE TRANSACTIONS on Electronics},
title={High Frequency Resolution DCO with Mismatched Capacitor Pairs},
year={2010},
volume={E93-C},
number={2},
pages={208-210},
abstract={The LC-based Digitally Controlled Oscillator (DCO) is one of the most important components of all digital phase locked loops. The performance of the loops is significantly determined by the DCO's frequency resolution. In order to enhance the frequency resolution, we propose a mismatched capacitor pairs based digitally controlled switched capacitance array, which dramatically reduces the minimum switched varactor capacitance. Furthermore, we implement a DCO based on our proposal in SMIC 0.18 µm and conduct simulation in Spectre. The simulation results show that the frequency resolution is enhanced compared with the existing methods.},
keywords={},
doi={10.1587/transele.E93.C.208},
ISSN={1745-1353},
month={February},}
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TY - JOUR
TI - High Frequency Resolution DCO with Mismatched Capacitor Pairs
T2 - IEICE TRANSACTIONS on Electronics
SP - 208
EP - 210
AU - Depeng JIN
AU - Guofei ZHOU
AU - Yong LI
AU - Shijun LIN
AU - Li SU
AU - Lieguang ZENG
PY - 2010
DO - 10.1587/transele.E93.C.208
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2010
AB - The LC-based Digitally Controlled Oscillator (DCO) is one of the most important components of all digital phase locked loops. The performance of the loops is significantly determined by the DCO's frequency resolution. In order to enhance the frequency resolution, we propose a mismatched capacitor pairs based digitally controlled switched capacitance array, which dramatically reduces the minimum switched varactor capacitance. Furthermore, we implement a DCO based on our proposal in SMIC 0.18 µm and conduct simulation in Spectre. The simulation results show that the frequency resolution is enhanced compared with the existing methods.
ER -