Four-drop bus with matched response

摘要

A four-drop bus has each driver or receiver terminated at the characteristic impedance of Z₀. Each driver or receiver is connected to a segment of transmission line with a characteristic impedance of Z₀. Two of these segments are connected at a first point. The other two of these segments are connected at a second point. The first and second points are connected by a central transmission line with a characteristic impedance of Z₀/2.