| GNSS接收机中可配置式宽范围数字调谐OTA-C滤波器 |
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| 引用本文： | 潘文光,马成炎,甘业兵,叶甜春. GNSS接收机中可配置式宽范围数字调谐OTA-C滤波器[J]. 半导体学报, 2010, 31(9): 095006-5 |
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| 作者姓名： | 潘文光 马成炎 甘业兵 叶甜春 |
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| 基金项目： | supported by the National High Technology Research and Development Program of China（No.2007AA12Z344） |
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| 摘 要： | The design of a digitally-tunable sixth-order reconfigurable OTA-C filter in a 0.18-μ m RFCMOS process is proposed. The filter can be configured as a complex band pass filter or two real low pass filters. An improved digital automatic frequency tuning scheme based on the voltage controlled oscillator technique is adopted to compensate for process variations. An extended tuning range (above 8:1) is obtained by using widely continuously tunable transconductors based on digital techniques. In the complex band pass mode, the bandwidth can be tuned from 3 to 24 MHz and the center frequency from 3 to 16 MHz.
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| 关 键 词： | 低通滤波器 全球导航卫星系统 OTA 可重构 数字调谐 接收器 CMOS工艺 带通滤波器 |
A reconfigurable OTA-C baseband filter with wide digital tuning for GNSS receivers |
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| Pan Wenguang,Ma Chengyan,Gan Yebing and Ye Tianchun. A reconfigurable OTA-C baseband filter with wide digital tuning for GNSS receivers[J]. Chinese Journal of Semiconductors, 2010, 31(9): 095006-5 |
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| Authors: | Pan Wenguang Ma Chengyan Gan Yebing Ye Tianchun |
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| Affiliation: | Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;Hangzhou Zhongke Microelectronics Co. Ltd, Hangzhou 310053, China;Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;Hangzhou Zhongke Microelectronics Co. Ltd, Hangzhou 310053, China |
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| Abstract: | |
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| Keywords: | reconfigurable filter wide tuning digital frequency tuning |
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