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Title: Tunable loop filter in fractional-N frequency synthesizer for wireless applications
Authors: Kit, G.L. 
Hamid, F.A. 
Ahmed, S.K. 
Issue Date: 2012
Journal: 2012 10th IEEE International Conference on Semiconductor Electronics, ICSE 2012 - Proceedings 2012, Article number 6417225, Pages 636-640 
Abstract: A tunable loop filter in fractional-N frequency synthesizer is proposed and analyzed. The proposed concept allows designer to fine tune the loop bandwidth based on current injection into the loop filter. Fine tuning feature can be achieved with the utilization of a voltage-controlled transconductance component. The analysis and simulation results are presented for this technique. It shows that the frequency synthesizer employing the proposed tunable loop filter allows designer to have a fine control on the loop bandwidth and lock time of the system. © 2012 IEEE.
DOI: 10.1109/SMElec.2012.6417225
Appears in Collections:COE Scholarly Publication

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