Abstract: Described is an apparatus for over-clocking or under-clocking, the apparatus comprises: a locked loop (e.g., phase locked loop or frequency locked loop) having a feedback divider, the locked loop to receive a reference clock and to compare it with a feedback clock which is output from the feedback divider, and to generate an output clock; a post locked loop divider, coupled to the locked loop, to receive the output clock and to generate a base clock for other logic units; and a control logic to adjust first and second divider ratios for the feedback divider and the post locked loop divider respectively for over-clocking or under-clocking the base clock such that the locked loop remains locked while being over-clocked or under-clocked.

Abstract: Described is an apparatus for over-clocking or under-clocking, the apparatus comprises: a locked loop (e.g., phase locked loop or frequency locked loop) having a feedback divider, the locked loop to receive a reference clock and to compare it with a feedback clock which is output from the feedback divider, and to generate an output clock; a post locked loop divider, coupled to the locked loop, to receive the output clock and to generate a base clock for other logic units; and a control logic to adjust first and second divider ratios for the feedback divider and the post locked loop divider respectively for over-clocking or under-clocking the base clock such that the locked loop remains locked while being over-clocked or under-clocked.

Abstract: An oscillator circuit including an integrated circuit amplifier, an integrated circuit active resistance circuit to set the gain of the amplifier, a crystal resonator to set the frequency of the signal generated by the oscillator circuit, and a pair of capacitors respectively situated at the inputs and outputs of the amplifier to assist in the starting of the oscillation signal. The active resistance circuit is responsive to an input signal in order to set the gain of the amplifier slightly above unity gain in order to meet the criterion for oscillation, but not too much above unity gain where the oscillator would unduly consume too much power. Thus, the oscillator has inherent low power characteristics. The active resistance circuit allows the amplifier gain to be set by software or other electronic means.

Abstract: An oscillator circuit including an integrated circuit amplifier, an integrated circuit active resistance circuit to set the gain of the amplifier, a crystal resonator to set the frequency of the signal generated by the oscillator circuit, and a pair of capacitors respectively situated at the inputs and outputs of the amplifier to assist in the starting of the oscillation signal. The active resistance circuit is responsive to an input signal in order to set the gain of the amplifier slightly above unity gain in order to meet the criterion for oscillation, but not too much above unity gain where the oscillator would unduly consume too much power. Thus, the oscillator has inherent low power characteristics. The active resistance circuit allows the amplifier gain to be set by software or other electronic means.