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A new PLL architecture: the composite PLL

48th Midwest Symposium on Circuits and Systems, 2005., 2005
This paper presents a new PLL architecture that provides a larger frequency band of phase noise filtering in order to relax VCO building constraints. It consists in a classical PLL with a parallel band pass loop. This topology is called composite PLL.
V. Lagareste   +5 more
openaire   +1 more source

A Performance Prediction of Clock Generation PLLs: A Ring Oscillator Based PLL and an LC Oscillator Based PLL

IEICE Transactions on Electronics, 2005
This paper discusses performance prediction of clock generation PLLs using a ring oscillator based VCO (RingVCO) and an LC oscillator based VCO (LCVCO). For clock generation, we generally design PLLs using RingVCOs because of their superiority in tunable frequency range, chip area and power consumption, in spite of their poor noise characteristics.
Takahito Miyazaki   +2 more
openaire   +1 more source

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