Abstract: A transmission circuit including four transmission component sets for Ethernet is provided. For each of the transmission component sets, a first capacitor and a first inductor are cascaded, the first inductor is coupled to the Ethernet connector via the first transmission line (TL), the first capacitor is coupled to the Ethernet chip via the second TL; a second capacitor and a second inductor are cascaded, the second inductor is coupled to the Ethernet connector via the third TL, the second capacitor is coupled to the Ethernet chip via the fourth TL; a first component set is coupled between a first contact and a second contact, the first contact is located between the first capacitor and the first inductor, and the second contact is located between the second capacitor and the second inductor; and a second component set is coupled between the second TL and the fourth TL.

Abstract: A transmission circuit including four transmission component sets for Ethernet is provided. Each transmission component set is coupled between an Ethernet connector and an Ethernet chip and has a protection component set. For each transmission component set, a first capacitor is coupled between first and second transmission lines (TLs), and coupled to the Ethernet connector via the first TL and to the Ethernet chip via the second TL; a second capacitor is coupled between third and fourth TLs, and coupled to the Ethernet connector via the third TL and to the Ethernet chip via the fourth TL; first and second inductors are cascaded and coupled between the first and third TLs; a third inductor is coupled between the second and fourth TLs; and a contact between the first and second inductors is coupled to a ground via a fifth TL.