Termination pair for a differential driver-differential receiver input output circuit

摘要

Various apparatuses and methods are described that include a variable-impedance matched termination pair coupled to differential signaling bus pair. In an embodiment, the differential signaling bus pair includes a first bus and a second bus. The variable-impedance matched termination pair includes a first variable-impedance component and a second variable-impedance component. The impedance value of each variable-impedance component depends on the voltage level sensed by that variable-impedance component. The first variable-impedance component couples to the first bus. The second variable-impedance component couples to the second bus. The first variable-impedance component is electrically isolated from the second variable-impedance resistor.