{"title":"A dual-mode low-pass filter for 802.11b/Bluetooth receiver","authors":"A. Mohieldin, E. Sánchez-Sinencio","doi":"10.1109/ESSCIR.2004.1356708","DOIUrl":null,"url":null,"abstract":"The design of a dual-mode low-pass channel selection filter for a dual-standard 802.11b/Bluetooth direct conversion receiver is presented. The filter is an OTA-C, 5/sup th/ order, Butterworth low pass structure. The OTA is implemented as a source-degenerated bipolar differential pair. Dual-mode operation, 600 kHz cut-off frequency for Bluetooth mode and 6 MHz for Wi-Fi mode, is achieved by switching the source-degeneration resistors and the capacitors. The filter operates from a single 2.5 V supply while consuming 2.7 mA and 0.9 mA for 802.11b and Bluetooth, respectively. It achieves 10 dBm in-band IIP3, 40 dBm out-of-band IIIP3 for both modes. The measured input referred noise density is -148.92 dBV/Hz and -140.48 dBV/Hz for 802.11b and Bluetooth, respectively.","PeriodicalId":294077,"journal":{"name":"Proceedings of the 30th European Solid-State Circuits Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 30th European Solid-State Circuits Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESSCIR.2004.1356708","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
The design of a dual-mode low-pass channel selection filter for a dual-standard 802.11b/Bluetooth direct conversion receiver is presented. The filter is an OTA-C, 5/sup th/ order, Butterworth low pass structure. The OTA is implemented as a source-degenerated bipolar differential pair. Dual-mode operation, 600 kHz cut-off frequency for Bluetooth mode and 6 MHz for Wi-Fi mode, is achieved by switching the source-degeneration resistors and the capacitors. The filter operates from a single 2.5 V supply while consuming 2.7 mA and 0.9 mA for 802.11b and Bluetooth, respectively. It achieves 10 dBm in-band IIP3, 40 dBm out-of-band IIIP3 for both modes. The measured input referred noise density is -148.92 dBV/Hz and -140.48 dBV/Hz for 802.11b and Bluetooth, respectively.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
