| 一种用于无线接收机的噪声整形可重构复数带通/低通滤波器的设计 |
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| 引用本文： | 刘琼冰,俞小宝,张俊峰,续阳,池保勇.一种用于无线接收机的噪声整形可重构复数带通/低通滤波器的设计[J].半导体学报,2014,35(9):095003-6. |
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| 作者姓名： | 刘琼冰 俞小宝 张俊峰 续阳 池保勇 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | A reconfigurable complex band-pass （CBP）/low-pass （LP） active-RC filter with a noise-shaping technique for wireless receivers is presented. Its bandwidth is reconfigurable among 500 kHz, 1 MHz and 4 MHz in LP mode and 1 MHz, 2 MHz and 8 MHz in CBP mode with 3 MHz center frequency. The Op-Amps used in the filter are realized in cell arrays in order to obtain scalable power consumption among the different operation modes. Furthermore, the filter can be configured into the 1st order, 2nd order or 3rd order mode, thus achieving a flexible filtering property. The noise-shaping technique is introduced to suppress the flicker noise contribution. The filter has been implemented in 180 nm CMOS and consumes less than 3 mA in the 3rd 8 MHz-bandwidth CBP mode. The spot noise at 100 Hz can be reduced by 14.4 dB at most with the introduced noise-shaping technique.
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| 关 键 词： | 有源RC滤波器 闪烁噪声 无线接收器 整形技术 CBP 可重构 运算放大器 过滤器 |
| 修稿时间： | 3/6/2014 12:00:00 AM |
A reconfigurable CBP/LP active RC filter with noise-shaping technique for wireless receivers |
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| Liu Qiongbing,Yu Xiaobao,Zhang Junfeng,Xu Yang and Chi Baoyong.A reconfigurable CBP/LP active RC filter with noise-shaping technique for wireless receivers[J].Chinese Journal of Semiconductors,2014,35(9):095003-6. |
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| Authors: | Liu Qiongbing Yu Xiaobao Zhang Junfeng Xu Yang and Chi Baoyong |
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| Affiliation: | Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China;Institute of Microelectronics, Tsinghua University, Beijing 100084, China |
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| Abstract: | A reconfigurable complex band-pass (CBP)/low-pass (LP) active-RC filter with a noise-shaping technique for wireless receivers is presented. Its bandwidth is reconfigurable among 500 kHz, 1 MHz and 4 MHz in LP mode and 1 MHz, 2 MHz and 8 MHz in CBP mode with 3 MHz center frequency. The Op-Amps used in the filter are realized in cell arrays in order to obtain scalable power consumption among the different operation modes. Furthermore, the filter can be configured into the 1st order, 2nd order or 3rd order mode, thus achieving a flexible filtering property. The noise-shaping technique is introduced to suppress the flicker noise contribution. The filter has been implemented in 180 nm CMOS and consumes less than 3 mA in the 3rd 8 MHz-bandwidth CBP mode. The spot noise at 100 Hz can be reduced by 14.4 dB at most with the introduced noise-shaping technique. |
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| Keywords: | active-RC filter noise-shaping trans-impedance amplifier flicker noise power-scalable |
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