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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/38600


    Title: The CMOS on-chip oscillator based on level tracking technique
    Authors: Chang, Chia-yang;Chen, Po-chang;Yang, Ching-yang;李揚漢;Lee, Yang-han
    Contributors: 淡江大學電機工程學系
    Date: 2002-08
    Issue Date: 2010-04-15 11:34:44 (UTC+8)
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Abstract: In this paper, we propose the architecture of a CMOS fully integrated level-locked loop (LLL). A 455 kHz LLL without external reference signal achieves the target of 1 percent variation, and consumes 9 mW with 3.6 V power supply in a standard 0.5 μm CMOS process. The frequency-to-voltage converter (FVC) in the LLL, built upon the charge redistribution principle, can decrease the process variation. A programmable controller is developed to increase the frequency accuracy. The voltage-controlled oscillator (VCO) is based on differential delay cells in order to minimize the effect of the power supply and the substrate noise. According to the main circuits, operated at 1.8 V provided by a regulator, the output frequency is accurately for 455 kHz from 2.0 V to 3.6 V.
    Relation: ASIC, 2002. Proceedings. 2002 IEEE Asia-Pacific Conference on, pp.197-200
    DOI: 10.1109/APASIC.2002.1031566
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Proceeding

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