A system to generate an oscillator signal. The system includes a multi-stage oscillator, where each stage generates an output. The system also includes a first weighting circuit coupled to the multi-stage oscillator. The first weighting circuit taps the outputs of at least some of the stages and applies a first variable weighting factor to each output of the tapped stages to generate a first weighted output for each of the tapped stages. The system also includes a first summing circuit coupled to the first weighting circuit. The first summing circuit sums the first weighted outputs of the tapped stages to produce the oscillator signal.