公开(公告)号：KR100687631B1

公开(公告)日：2007-03-08

申请号：KR1020060010184

申请日：2006-02-02

Applicant: (주)글로넷시스템즈 ,  재단법인서울대학교산학협력재단

Inventor： 정덕균 ,  박준영

IPC: H04B1/40

Abstract: A driver for low power and large signal, and an ethernet transceiver having the same are provided to satisfy a dynamic range of voltage required for 10BASET-T, 100BASE-TX and 1000BASE-T standards and guarantee low power consumption and wide power dynamic range. Voltage buffers receive input signals by input nodes(302,402), and when the input signals are high signals, the voltage buffers output supply voltages(VDD) to output nodes(303,403), and when the input signals are low signals, the voltage buffers output a zero potential. The first current sources(306,406) are disposed in a direction that current flows to nodes(305,405) to pull up voltages of nodes(305,405), and the second current sources(307,407) are disposed in a direction that current is synchronized to a ground point to pull down voltages of the nodes(305,405). When input signals applied to the input nodes(302,402) are high signals, the first switches(308,408) provided between the first current sources(306,406) and the nodes(305,405) connect the first current sources(306,406) to the nodes(305,405), and the second nodes(309.409) provided between the second current sources(307,407) and the nodes(305,405) disconnect the second current sources(307,407) form the nodes(305,405).

Abstract translation: 低功耗和大信号驱动器以及具有该驱动器的以太网收发器可满足10BASE-T，100BASE-TX和1000BASE-T标准所需的电压动态范围，并保证低功耗和宽动态范围。 电压缓冲器通过输入节点（302,402）接收输入信号，并且当输入信号是高信号时，电压缓冲器向输出节点（303,403）输出电源电压（VDD），并且当输入信号是低信号时，电压缓冲器输出 零电位。 第一电流源（306,406）沿电流流向节点（305,405）的方向设置以提升节点（305,405）的电压，并且第二电流源（307,407）设置在电流与地面同步的方向 指向下拉节点（305,405）的电压。 当施加到输入节点（302,402）的输入信号是高信号时，设置在第一电流源（306,406）和节点（305,405）之间的第一开关（308,408）将第一电流源（306,406）连接到节点（305,405） ，并且设置在第二电流源（307,407）与节点（305,405）之间的第二节点（309.409）从节点（305,405）断开第二电流源（307,407）。