{"title":"一种用于GSM移动电话的双极中频装置","authors":"K. Kwan, K. Marshall","doi":"10.1109/BIPOL.1992.274083","DOIUrl":null,"url":null,"abstract":"The authors describe an IF device used in a telephone handset for the European GSM cellular network. It carries out frequency down-conversion from 65.8 MHz to the 812.5-kHz baseband signal. It has a maximum system gain of 90 dB and a dynamic range of 56 dB. A system noise figure of 7-8 dB was achieved at maximum gain setting. Output was maintained within the midrange of analog-to-digital-converter (ADC) input levels by employing a digital baseband automatic gain control (AGC) technique.<<ETX>>","PeriodicalId":286222,"journal":{"name":"Proceedings of the 1992 Bipolar/BiCMOS Circuits and Technology Meeting","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A bipolar IF device for GSM mobile telephone\",\"authors\":\"K. Kwan, K. Marshall\",\"doi\":\"10.1109/BIPOL.1992.274083\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The authors describe an IF device used in a telephone handset for the European GSM cellular network. It carries out frequency down-conversion from 65.8 MHz to the 812.5-kHz baseband signal. It has a maximum system gain of 90 dB and a dynamic range of 56 dB. A system noise figure of 7-8 dB was achieved at maximum gain setting. Output was maintained within the midrange of analog-to-digital-converter (ADC) input levels by employing a digital baseband automatic gain control (AGC) technique.<<ETX>>\",\"PeriodicalId\":286222,\"journal\":{\"name\":\"Proceedings of the 1992 Bipolar/BiCMOS Circuits and Technology Meeting\",\"volume\":\"25 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-10-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 1992 Bipolar/BiCMOS Circuits and Technology Meeting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/BIPOL.1992.274083\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 1992 Bipolar/BiCMOS Circuits and Technology Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/BIPOL.1992.274083","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The authors describe an IF device used in a telephone handset for the European GSM cellular network. It carries out frequency down-conversion from 65.8 MHz to the 812.5-kHz baseband signal. It has a maximum system gain of 90 dB and a dynamic range of 56 dB. A system noise figure of 7-8 dB was achieved at maximum gain setting. Output was maintained within the midrange of analog-to-digital-converter (ADC) input levels by employing a digital baseband automatic gain control (AGC) technique.<>
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