Patent ID: 8179158

Claim:
A printed circuit board having a termination of a T-shaped signal line, comprising: a first integrated circuit having at least one data output, a second integrated circuit and a third integrated circuit, each having a data input, a power supply unit for generating a supply voltage against a reference potential for the second and the third integrated circuits, a line beginning of the T-shaped signal line connected to the data output of the first integrated circuit, at least two line ends of the T-shaped signal line, a respective one of said at least two line ends connected to the data input of a respective one of the second and the third integrated circuits, and a terminating voltage circuit for generating a terminating voltage including a first and second terminating resistors respectively terminating the line ends of the data inputs of the second and the third integrated circuits, wherein the first terminating resistor has one end connected to said power supply unit and another end connected to said data input of the second integrated circuit, wherein the second terminating resister has one end connected to said reference potential and another end connected to said data input of the third integrated circuit, wherein said first and second terminating resistors form a voltage divider for dividing said supply voltage, wherein said third integrated circuit is only connected to said first terminating resistor, said second terminating resistor, said first integrated circuit and said second integrated circuit, and wherein each of said first and second terminating resistors has a resistance which is determined based on an impedance of a respective one of said at least two line ends of the T-shaped signal line each connected to the data input of the second and the third integrated circuits.