| 采用数字辅助直流失调消除技术适用于WCDMA/GSM接收机的双模模拟基带 |
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| 引用本文： | 谢任重,江晨,李伟男,黄煜梅,洪志良.采用数字辅助直流失调消除技术适用于WCDMA/GSM接收机的双模模拟基带[J].半导体学报,2011,32(12):125001-6. |
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| 作者姓名： | 谢任重 江晨 李伟男 黄煜梅 洪志良 |
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| 基金项目： | Project supported by the National High Technology Research and Development Program of China （Nos. 2009AA01 Z261, 2009ZX01031- 003-002）. |
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| 摘 要： | A dual-mode analog baseband with digital-assisted DC-offset calibration (DCOC) for WCDMA/GSM receiver is presented. A digital-assisted DCOC is proposed to solve the DC-offset problem by removing the DC-offset component only. This method has no bandwidth sacrifice. After calibration the measured output residual offset voltage is within 5 mV at most gain settings and the IIP2 is more than 60 dBm. The baseband is designed to be reconfigurable at bandwidths of 200 kHz and 2.1 MHz. Total baseband gain can be programmed from 6 to 54 dB. The chip is manufactured with 0.13 μm CMOS technology and consumes 10 mA from a 1.5 V supply in the GSM mode including an on-chip buffer while the core area occupies 1.2 mm2.
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| 关 键 词： | WCDMA 直流偏移 GSM 双模式 接收机 基带 校准 模拟 |
| 收稿时间： | 6/13/2011 7:41:02 PM |
| 修稿时间： | 7/12/2011 8:21:09 PM |
A dual-mode analog baseband with digital-assisted DC-offset calibration for WCDMA/GSM receivers |
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| Xie Renzhong,Jiang Chen,Li Weinan,Huang Yumei and Hong Zhiliang.A dual-mode analog baseband with digital-assisted DC-offset calibration for WCDMA/GSM receivers[J].Chinese Journal of Semiconductors,2011,32(12):125001-6. |
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| Authors: | Xie Renzhong Jiang Chen Li Weinan Huang Yumei and Hong Zhiliang |
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| Institution: | State Key Laboratory of ASIC and System, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC and System, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC and System, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC and System, Fudan University, Shanghai 201203, China;State Key Laboratory of ASIC and System, Fudan University, Shanghai 201203, China |
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| Abstract: | |
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| Keywords: | analog baseband digital-assisted DCOC reconfigurable receiver |
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