Patent ID: 7545652
Filing Date: 2009-06-09
Classification: H01L,H01P,H05K

Abstract:
1. A printed circuit board, comprising: a printed wiring board; a transmission side circuit element mounted on the printed wiring board; a reception side circuit element mounted on the printed wiring board; a pair of differential signaling lines provided between the transmission side circuit element and the reception side circuit element; a low speed signaling line arranged to be adjacent to and in parallel to the pair of differential signaling lines, for transmitting a signal having a frequency smaller than a frequency of a signal to be transmitted through the pair of differential signaling lines; a center tap terminal disposed in a vicinity of an input terminal of the reception side circuit element of the pair of differential signaling lines; a first capacitive element connected to the low speed signaling line in a vicinity of an output terminal of the transmission side circuit element and a ground of the printed wiring board; and a second capacitive element connected to the low speed signaling line in a vicinity of an input terminal of the reception side circuit element and the ground of the printed wiring board.