A 0.6 V Low-Power Wide-Range Delay-Locked Loop in 0.18 $\mu$m CMOS
Autor: | Liang-Hung Lu, Chung-Ting Lu, Hsieh-Hung Hsieh |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | IEEE Microwave and Wireless Components Letters. 19:662-664 |
ISSN: | 1558-1764 1531-1309 |
DOI: | 10.1109/lmwc.2009.2029752 |
Popis: | In this letter, a delay-locked loop (DLL) suitable for low-power and low-voltage operations is presented. To overcome the performance limitations, such as a restricted locking range and elevated output jitters, a novel voltage-controlled delay cell and a phase/frequency detector with a start controller are employed in the proposed DLL. Using a standard 0.18 mum CMOS process, the fabricated circuit exhibits a locking range from 85 to 550 MHz. The measured peak-to-peak and rms jitters at 550 MHz are 25.6 and 3.8 ps, respectively. Operated at a supply voltage of 0.6 V, the power consumption of the DLL circuit varies from 2.4 to 4.2 mW within the entire locking range. |
Databáze: | OpenAIRE |
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