Printed circuit board

摘要

A printed circuit board includes signal transmitting units that transmit signals, signal receiving units that receive signals, and a plurality of signal lines that connect the signal transmitting units and the signal receiving units. A resistor having a value Rp [Ω] of resistance with a first tolerance is provided between two signal lines that are adjacent to each other. In addition, a capacitor element that is connected in series to the resistor and that has a value Cp [F] of capacitance with a second tolerance is also connected between the two signal lines. In relation to the rise time tr [s] of the signals output from the signal transmitting units, the value Rp of resistance of the resistor and the value Cp of capacitance of the capacitor element are set such that an expression (Cp×Rp)×0.9≦tr/3≦(Cp×Rp)×1.1 is satisfied.

主权项

1. A printed circuit board comprising:
signal transmitting units that transmit signals; signal receiving units that receive the signals; and a plurality of signal lines that connect the signal transmitting units and the signal receiving units and that are arranged in parallel to one another, wherein a resistor element and a capacitor element are connected in series and mounted between any two signal lines that are adjacent to each other in the plurality of signal lines, and wherein, if a value of resistance of the resistor element is assumed to be Rp [Ω], a value of capacitance of the capacitor element is assumed to be Cp [F], and rise time of the signals output from the signal transmitting units is assumed to be tr [s], the value Rp of resistance and the value Cp of capacitance are set such that an expression (Cp×Rp)×0.9≦tr/3≦(Cp×Rp)×1.1 is satisfied.