Abstract: A system for determining power supply noise in an integrated circuit includes a circuit system comprising a circuit element and a power delivery network, the power delivery network comprising at least one impedance, a channel formed by input and output portions of the circuit element, the channel having the impedance of the power delivery network, a signal source for providing an aggressor signal having a known spectrum to the input portion of the circuit element, and an analysis device for measuring the aggressor signal at the output portion of the circuit element, whereby the aggressor signal at the output portion of the circuit element is influenced by the impedance of the power delivery network and indicates power supply noise.