The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A new type Phase Frequency Detector (PFD) and Charge Pump (CP) configuration with extensible linear range is presented in this paper. The proposed Linear Range Extensible PFD and CP (LRE-PFDCP) can minimize the impact of non-ideal effects caused by the limited linear range of the Conventional PFD and CP (C-PFDCP). Thus, the frequency acquisition time of the Phase-Locked Loop (PLL) implemented with...
In this paper, the detailed design procedure for two operational amplifiers (OP-Amp) used in charge pumps (CP) is presented. Such procedure, which is from system-level specifications to circuit-level requirements, provides a general methodology for OP-Amp design in CP. The design was simulated in a 0.18μm CMOS process and occupies a layout area of about 200μm×100μm. The simulation results show that...
This paper proposes a full-swing charge pump with zero phase offset for charge pump PLL (CP-PLL). The origins of phase offset are discussed and theoretically analyzed. Standard topologies for phase offset improvement are discussed and a new charge pump topology with zero phase offset and full-swing output is presented. Simulation results are presented to show the excellence of charge pump zero phase...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.