Patent ID: 6856165
Filing Date: 2005-02-15
Classification: H04L

Abstract:
1. A circuit arrangement for adapting characteristic wave impedance at line ends of a vehicle data bus, comprising: a data bus with at least two data bus lines; and a plurality of data terminals, each having a transceiver unit that is coupled to the data bus via a connection interface, for differential-mode signal transmission on the data bus; wherein each connection interface comprises a reactor that filters interferences on the data bus, said reactor being connected between the data bus lines and an associated transceiver unit, and an adaptation resistor network that adapts characteristic wave impedance of the data bus lines; the adaptation resistor network is arranged between the reactor and line ends of the data bus lines; the adaptation resistor network connects the line ends of the data bus lines to ground; and the adaptation resistor network is connected to ground via a capacitor.