教師資料查詢 | 類別: 期刊論文 | 教師: 郭建宏 KUO, CHIEN-HUNG (瀏覽個人網頁)

標題:A 1-V 10.7-MHz fourth-order bandpass ΔΣ modulators using two switched op amps
學年93
學期1
出版(發表)日期2004/11/01
作品名稱A 1-V 10.7-MHz fourth-order bandpass ΔΣ modulators using two switched op amps
作品名稱(其他語言)
著者郭建宏; Kuo, Chien-hung; Liu, Shen-iuan
單位淡江大學電機工程學系
出版者Piscataway: Institute of Electrical and Electronics Engineers (IEEE)
著錄名稱、卷期、頁數IEEE Journal of Solid-State Circuits 39(11), pp.2041-2045
摘要A 1-V 10.7-MHz fourth-order bandpass delta-sigma modulator using two switched opamps (SOPs) is presented. The 3/4 sampling frequency and the double-sampling techniques are adapted for this modulator to relax the required clocking rate. The presented modulator can not only reduce the number of SOPs, but also the number of capacitors. It has been implemented in 0.25-μm 1P5M CMOS process with MIM capacitors. The modulator can receive 10.7-MHz IF signals by using a clock frequency of 7.13 MHz. A dynamic range of 62 dB within bandwidth of 200 kHz is achieved and the power consumption of 8.45 mW is measured at 1-V supply voltage. The image tone can be suppressed by 44 dB with respect to the carrier. The in-band third-order intermodulation (IM3) distortion is -65 dBc below the desired signal.
關鍵字
語言英文
ISSN0018-9200
期刊性質國外
收錄於EI;SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
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