Loop filter capacitor multiplication in a charge pump circuit

摘要

A loop filter includes a capacitor and a resistor. A switching circuit switches the smallest of multiple currents generated from a current generating circuit, through the capacitor and directs a combination of the multiple currents through the resistor. Independent claims are also included for the following: (1) differential charge pump circuit; (2) capacitor integration method; and (3) single-ended charge pump circuit.