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    초록·키워드

    A 3.3V PLL(Phase Locked Loop) is designed for a high frequency, low voltage, and low power applications. This paper proposes a new PLL architecture to improve voltage-to-frequency linearity of VCO(Voltage Controlled Oscillator). The designed VCO operates at a wide frequency range of 75.8MHz-1GHz with a good linearity. PFD(Phase Frequency Detector) circuit preventing fluctuation of the charge pump circuit under the locked condition is designed. The simulation results of the PLL with a standard 0.6μm CMOS technology illustrate a locking time of 3.5μs, ±100ps jitter and a power dissipation of 92mW at 1GHz operating frequency with 125MHz of input frequency.

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      UCI(KEPA) : I410-ECN-0101-2009-569-013245077