Abstract: A loop filter, method of generating a control signal and a phase-locked loop circuit employing the loop filter or the method. In one embodiment, the loop filter includes a capacitor having a charge rate proportional to a current therethrough and configured to provide an output signal therefrom. The loop filter also includes a current bypass circuit, coupled to the capacitor, configured to reduce the current through the capacitor and thereby reduce the charge rate of the capacitor.

Abstract: A slew rate control circuit for an output circuit of an integrated circuit includes an input node for obtaining an input signal and an output node for providing an output signal. A first stage of the control circuit includes at least one transistor having a control terminal and first and second main terminals. The control terminals of each at least one transistor are connected together to the input node. The first main terminal of each at least one transistor are connected to a voltage rail. The second main terminal of each at least one transistor is connected to the output node through its own individual resistor. One or more subsequent stages of the control circuit each contain at least one transistor having a control terminal and first and second main terminals. The control terminals of each at least one transistor in each one or more subsequent stages of the control circuit are connected together to a control node driven from the control terminals of the preceding stage through at least one inverter.