03939nam 22007215 450 991078003550332120230412152202.01-280-20003-097866102000300-306-47516-210.1007/b117702(CKB)111056486606594(EBL)3035631(SSID)ssj0000107925(PQKBManifestationID)11142950(PQKBTitleCode)TC0000107925(PQKBWorkID)10015107(PQKB)11731100(DE-He213)978-0-306-47516-0(MiAaPQ)EBC3035631(MiAaPQ)EBC197160(Au-PeEL)EBL3035631(CaPaEBR)ebr10052628(CaONFJC)MIL20003(OCoLC)923696403(Au-PeEL)EBL197160(OCoLC)51874267(PPN)237930145(EXLCZ)9911105648660659420100301d2002 u| 0engur|n|---|||||txtccrAutomated Calibration of Modulated Frequency Synthesizers[electronic resource] /by Dan McMahill1st ed. 2002.New York, NY :Springer US :Imprint: Springer,2002.1 online resource (173 p.)The Springer International Series in Engineering and Computer Science ;650Description based upon print version of record.0-7923-7589-0 Includes bibliographical references and index.Architectures -- System Requirements -- Automatic Calibration System -- Implementation Details -- Experimental Results -- Summary and Conclusions.In recent years, there has been considerable interest in highly integrated, low power, portable wireless devices. There are three primary areas to be addressed when higher performance and lower power is desired. The first area is the device technology. Scaling of devices has realized steady improvements for many years. The second area is improved circuit design techniques. The final area is at the architectural level. This monograph focuses on the problem of low power GFSK/GMSK modulation and presents an architectural approach for improved performance. The new architecture is a modulated S-D fractional-N frequency synthesizer. The key innovation is an automatic calibration technique, which operates in the background. The availability of the calibration circuit makes high data rate, low power modulation possible. From the Foreword: "The key contribution of the work presented in this monograph is a technique for in service automatic calibration of the modulated frequency synthesizer by ensuring that the digital emphasis filter and analog loop filter characteristics are matched. The automatic calibration circuit operates while the transmitter is in service and compensates for process and temperature variation. GFSK and 4-GFSK modulation was demonstrated at data rates of 2.5 Mb/s and 5 Mb/s respectively at an RF output carrier frequency of 1.8 GHz. ... In addition, he presents some valuable tools for the practicing engineer in this field." by Charles G. Sodini.The Springer International Series in Engineering and Computer Science ;650Electronic circuitsElectrical engineeringElectronic Circuits and SystemsElectrical and Electronic EngineeringElectronic circuits.Electrical engineering.Electronic Circuits and Systems.Electrical and Electronic Engineering.621.3815/486McMahill Dan1531175MiAaPQMiAaPQMiAaPQBOOK9910780035503321Automated Calibration of Modulated Frequency Synthesizers3776598UNINA