fter all, the passive RLC
According to the impedance –frequency curve in Fig. 6 the
passive distribution model of the VddPLL power supply pin
was extracted by using the DEA. Each R, L and C are assumed
as a chromosome. The mutation, crossover, and selection
operators have been performed. Fig. 7 represents the RLC
model of the power distribution network for the VddPLL power
supply pin. It was extracted by using the differential evolution
algorithm and the Equations 1-3. Fig. 8 and Fig. 9 represents
the correlation between the measurement and the model. The
fitness function is the difference between measured and
modeled impedance value of the different frequencies.