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This paper presents a wide-operating range analog phase locked loop (PLL) constructed from all-digital integrated circuit (IC) process components. Specifically, this work introduces 2 cutting-edge, scalable analog circuit designs for a charge pump (CP) and a voltage controlled oscillator (VCO). The ultra-low power and highly accurate CP circuit uses 6 minimum-sized transistors, a small metal interconnect...
This paper presents a high performance, ultra-low power scalable charge pump (CP) design for analog phase locked loops (PLLs). The compact CP circuit uses 4 minimum-sized transistor switches and a relatively small capacitor for transferring charge within the PLL to adjust the voltage controlled oscillator (VCO) frequency. Unlike the state of the art, the proposed CP design does not use current mirrors,...
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