Patent ID: 6946948

Claim:
A crosspoint switch unit comprising: a first set of transmission lines; a second set of transmission lines selectively coupled to the first set of transmission lines; an amplifier chain coupled to the first set of transmission lines; a passive network coupled to the amplifier chain; wherein the amplifier chain comprises a differential signal path having a first signal path and a second signal path and wherein the passive network comprises: a first capacitance; a second capacitance; a first resistance; a second resistance; wherein the first resistance is coupled to the first capacitance in a first series path and the second resistance is coupled to the second capacitance in a second series path with the first series path coupled to the first signal path and the second series path coupled to the second signal path; and a shunt resistance with predetermined resistance shunting the first series path to the second series path; wherein the first and second resistance, the first and second capacitance and the shunt resistance are fabricated on a monolithic integrated circuit substrate, and at least one of the first and second resistance, the first and second capacitance and the shunt resistance is one of segmented, programmable, and a combination thereof; and wherein an impedance of the at least one of the first and second resistance, the first and second capacitance and the shunt resistance is selectable after being fabricated on the monolithic integrated circuit substrate.