Abstract: A tunable impedance network includes at least one variable impedance bank comprising a plurality of digitally controlled unit cells each connected from at least a first end to a routing wire. The tunable impedance network is provided with selection means arranged for selecting, based on a desired impedance, a corresponding predetermined digital control signal to be supplied to the variable impedance bank to switch-on a corresponding combination of the unit cells. Between each pair of unit cells in the variable impedance bank, a routing wire section is provided having a respective routing impedance. Each of the predetermined digital control signals is provided for switching-on a combination of unit cells in such a way that the routing impedance of the routing wire section is exploited to fine-tune the actual impedance generated by the variable impedance bank.

Abstract: A tunable impedance network includes at least one variable impedance bank comprising a plurality of digitally controlled unit cells each connected from at least a first end to a routing wire. The tunable impedance network is provided with selection means arranged for selecting, based on a desired impedance, a corresponding predetermined digital control signal to be supplied to the variable impedance bank to switch-on a corresponding combination of the unit cells. Between each pair of unit cells in the variable impedance bank, a routing wire section is provided having a respective routing impedance. Each of the predetermined digital control signals is provided for switching-on a combination of unit cells in such a way that the routing impedance of the routing wire section is exploited to fine-tune the actual impedance generated by the variable impedance bank.

Abstract: A tunable impedance network includes at least one variable impedance bank comprising a plurality of digitally controlled unit cells each connected from at least a first end to a routing wire. The tunable impedance network is provided with selection means arranged for selecting, based on a desired impedance, a corresponding predetermined digital control signal to be supplied to the variable impedance bank to switch-on a corresponding combination of the unit cells. Between each pair of unit cells in the variable impedance bank, a routing wire section is provided having a respective routing impedance. Each of the predetermined digital control signals is provided for switching-on a combination of unit cells in such a way that the routing impedance of the routing wire section is exploited to fine-tune the actual impedance generated by the variable impedance bank.