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 |