However , it is usual to combine the frequency and impedance scaling into a single step :
Impedance scaling by itself has no effect on the transfer function of the filter ( providing that the terminating impedances have the same scaling applied to them ) .
It is usual to combine the frequency and impedance scaling into a single step :
Impedance scaling by itself has no effect on the transfer function of the filter ( providing that the terminating impedances have the same scaling applied to them ) .