標題: A Sub-10-mu W Digitally Controlled Oscillator Based on Hysteresis Delay Cell Topologies for WBAN Applications
作者: Hsu, Shu-Yu
Yu, Jui-Yuan
Lee, Chen-Yi
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: Digitally controlled oscillator (DCO);hysteresis delay cell (HDC)
公開日期: 1-十二月-2010
摘要: This brief presents an all digitally controlled oscillator (DCO) design with two newly proposed hysteresis delay cells (HDCs) for wireless body area network applications. According to circuit topologies, the two HDCs are defined as on-off and cascaded HDCs that provide various propagation delay values. These HDCs form a simple oscillator structure based on a power-of-2 delay stage DCO (P2-DCO) architecture. Each delay stage provides half of the delay of the previous delay stage in descending order, enabling low-power and small-area features. The P2-DCO is verified in a 90-nm CMOS technology for wide operating frequencies with area of 80 mu m x 80 mu m and least significant bit resolution of 2.05 ps. With a supply voltage of 1.0 V, the measured dynamic power values are 5.4 and 166 mu W at 3.4 and 163.2 MHz, respectively.
URI: http://dx.doi.org/10.1109/TCSII.2010.2087991
http://hdl.handle.net/11536/26256
ISSN: 1549-7747
DOI: 10.1109/TCSII.2010.2087991
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
Volume: 57
Issue: 12
起始頁: 951
結束頁: 955
顯示於類別:期刊論文


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