| 標題：A 250 MHz 14 dB-NF 73 dB-Gain 82 dB-DR Analog Baseband Chain with Digital-Assisted DC-Offset Calibration for Ultra-Wideband |
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| 學年 | 98 |
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| 學期 | 2 |
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| 出版（發表）日期 | 2010/02/01 |
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| 作品名稱 | A 250 MHz 14 dB-NF 73 dB-Gain 82 dB-DR Analog Baseband Chain with Digital-Assisted DC-Offset Calibration for Ultra-Wideband |
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| 作品名稱（其他語言） | |
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| 著者 | 施鴻源; Shih, Horng-yuan; Kuo, Chien-nan; Chen, Wei-hsien, Yang, Tzu-yi; Juang, Kai-chenug |
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| 單位 | 淡江大學電機工程學系 |
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| 出版者 | IEEE Solid-State Circuits Society |
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| 著錄名稱、卷期、頁數 | IEEE Journal of Solid-State Circuits 45(2), pp.338-350 |
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| 摘要 | A 250 MHz analog baseband chain for ultra-wideband was implemented in a 1.2 V 0.13 ¿ m CMOS process. The chip has an active area of 0.8 mm2. In the analog baseband, PGAs and filters are carried out by current-mode amplifiers to achieve wide bandwidth and wide dynamic range of gain, as well as low noise and high linearity. Besides, a current-mode Sallen-Key low-pass filter is adopted for effective rejection of out-of-band interferers. A 6 th-order Chebyshev low-pass filter realized in Gm-C topology is designed in the baseband chain for channel selection. Digitally-assisted DC-offset calibration improves second-order distortion of the entire chain. The design achieves a maximum gain of 73 dB and a dynamic range of 82 dB. Measured noise figure is 14 dB, an IIP3 of -6 dBV, and IIP2 of -5 dBV at the maximum gain mode. The analog baseband chain consumes 56.4 mA under supply of 1.2 V. |
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| 關鍵字 | Analog filter;DC offset calibration;Analog baseband;Current-mode VGA;Current-mode filter;Ultra wideband |
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| 語言 | 英文 |
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| ISSN | 0018-9200 |
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| 期刊性質 | 國外 |
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| 收錄於 | SCI;EI |
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