Information Product Literature Request Bus termination is used in data transmission systems where a design engineer wants to reduce or eliminate noise caused by signal reflection. When an electrical signal encounters an impedance mismatch, such as when a cable interfaces to a printed circuit board, the change in impedance results in a reflection of the signal. This reflection then adds or subtracts from the amplitude of the original signal, thereby distorting the waveform.
Termination matches the impedance of the signal medium.
It is a parallel bus protocol for transmitting data. Dallas Semiconductor can provide design engineers the proper terminator for their applications.