1. An oscillator circuit comprising an integrating amplifier circuit, the amplifier circuit that provides an output waveform, the oscillator circuit comprising: an independent voltage source that is coupled to provide a voltage to the amplifier circuit; a switched capacitor circuit that is separated from the independent voltage source; and a plurality of switches, at least a portion of the plurality of switches being coupled to the switched capacitor circuit and the amplifier circuit, the plurality of switches that controls a coupling of the switched capacitor circuit to the amplifier circuit and wherein the plurality of switches is substantially controlled by the output waveform.