Patent ID: 8218973
Filing Date: 2012-07-10
Classification: H04B,H05K

Abstract:
1. An optical transmitter device, comprising: an optical transmitter module; and a printed circuit board which is electrically connected to the optical transmitter module, wherein the optical transmitter module comprises: wherein the printed circuit board comprises: wherein the first termination resistor circuit comprises a first resistor device, a resistance value of which is Rterm, and a first capacitor device, a capacitance value of which is Cterm; wherein the second termination resistor circuit comprises a second resistor device, and an inductor device, an inductance value of which is Lterm; and wherein a relational expression wherein an impedance of the first termination resistor circuit in a pass frequency band thereof is substantially equal to an impedance of the second termination resistor circuit in a pass frequency band thereof.