公开(公告)号：US20090190648A1

公开(公告)日：2009-07-30

申请号：US12355867

申请日：2009-01-19

申请人： Yoshihisa Sakano ,  Keisuke Satou

发明人： Yoshihisa Sakano ,  Keisuke Satou

IPC分类号： H03K5/159 ,  H04L27/00

CPC分类号： H04L25/0278 ,  G09G5/003 ,  G09G5/12 ,  G09G2300/0426 ,  G09G2370/12 ,  H03K19/0005 ,  H04L25/0272 ,  H04L25/0282

摘要： A TMDS driver outputs differential signals via a pair of differential signal lines. The input differential pair includes a first transistor and a second transistor with one terminals thereof connected to each other so as to form a common terminal, and operates with termination resistors, which are arranged on the side of a differential receiver connected via the differential signal lines, as a part of the load. A tail current source supplies constant current to the input differential pair. An impedance adjusting unit is provided between the input differential pair and the differential signal lines, and adjusts the load impedance of the first transistor and the second transistor.

摘要翻译： TMDS驱动器通过一对差分信号线输出差分信号。 输入差分对包括第一晶体管和第二晶体管，其一个端子彼此连接以形成公共端子，并且与终端电阻一起工作，终端电阻器布置在经由差分信号线连接的差分接收器侧 ，作为负载的一部分。 尾电流源向输入差分对提供恒定电流。 阻抗调整单元设置在输入差分对和差分信号线之间，并调整第一晶体管和第二晶体管的负载阻抗。