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Differential multi-phase DLL for reconfigurable radio frequency synthesizer

TitleDifferential multi-phase DLL for reconfigurable radio frequency synthesizer
Publication TypeConference Paper
Year of Publication2014
AuthorsGaggatur, JS, Khatri, V, Raja, I, Lenka, MK, Banerjee, G
Conference NameElectronics, Computing and Communication Technologies (IEEE CONECCT), 2014 IEEE International Conference on
Date PublishedJan
KeywordsClocks, CMOS technology, Delay lines, delay lock loops, delay-locked loops, delays, differential multiphase DLL frequency synthesizer, frequency 500 MHz to 3 GHz, frequency synthesis, frequency synthesizers, harmonic lock, harmonics, Mixers, multi phase, multiphase delay-locked loop based frequency synthesizer, Noise, phase detector, reconfigurable radio frequency synthesizer, size 0.13 mum, software radio, stuck lock, Tracking loops, Voltage control, wide loop bandwidth

A multiphase, delay-locked loop (DLL) based frequency synthesizer is designed for harmonic rejection mixing in reconfigurable radios. This frequency synthesizer uses a 1 GHz input reference frequency, and achieves ≤ 20ns settling time by utilizing a wide loop bandwidth. The circuit has been designed in 0.13-μm CMOS technology. It is designed for a frequency range of 500 MHz to 3 GHz with stuck/harmonic lock removal assist.

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