Patent ID: 6670827
Filing Date: 2003-12-30
Classification: H03K,H04L

Abstract:
A tri-state driver arrangement comprising:a coupler for potentially isolating a transmission of signals between an input and an output of the tri-state driver arrangement; an output driver coupled to the output; and control means for controlling the output driver in order to switch the output driver to a first or second state for transmitting data and to a third state for deactivating the tri-state driver arrangement, wherein the control means are arranged in such a way that they switch the output driver to the third state when an output signal from the coupler lies within a range defined by a first threshold value and a second threshold value, and wherein the control means are arranged in such a way that they switch the output driver to the first or second state for transmitting data when the output signal from the coupler is larger than a third threshold value or less than a fourth threshold value, the first threshold value being less than the fourth threshold value and the third threshold value being less than the second threshold value.