Title :
Feedforward compensation technique for all digital phase locked loop based synthesizers
Author :
Chaivipas, Win ; Matsuzawa, Akira ; Oh, Philipus Chandra
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol.
Abstract :
A method of direct input reference feedforward compensation is proposed and discussed for all digital phase locked loop based synthesizers. The practical issues in implementing the system are addressed, and analysis of the feedforward estimation error on the system is performed. A sample model was created and simulated. Simulation shows the effect of the feedforward estimation error on the system´s settling speed. The system was shown to be able to reduce the settling time to one eighth of the minimum achievable settling speed of a system without feedforward compensation
Keywords :
digital phase locked loops; error compensation; feedforward; frequency synthesizers; network analysis; all digital phase locked loop; feedforward compensation; feedforward estimation error; frequency synthesizer; settling speed; settling time; Bandwidth; Estimation error; Feedforward systems; Feeds; Filters; Frequency synthesizers; Phase locked loops; Phase noise; Switches; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693308
