초록

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Abstract ▼ AI-Helper

Since the speed of operation in the system has been increasing rapidly, chips should have been synchronized. Then, synchronized circuits such as PLL (Phase Locked Loop), DLL (Delay Locked Loop) are used. VCO (Voltage Controled Oscillator) generated a frequency in the PLL has disadvantage such as jit...

Since the speed of operation in the system has been increasing rapidly, chips should have been synchronized. Then, synchronized circuits such as PLL (Phase Locked Loop), DLL (Delay Locked Loop) are used. VCO (Voltage Controled Oscillator) generated a frequency in the PLL has disadvantage such as jitter accumulation. On the other hands, VCDL (Voltage Controled Delay Line) used at DLL has an advantage which has no jitter accumulation. In this paper, a new and improved VCDL structure is suggested.