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。

公开(公告)号：US20100079216A1

公开(公告)日：2010-04-01

申请号：US12562449

申请日：2009-09-18

申请人： Yoshihisa SAKANO

发明人： Yoshihisa SAKANO

IPC分类号： H01P1/00 ,  H04B3/14

CPC分类号： H04B3/08 ,  H04B3/145

摘要： An equalizer amplifies a predetermined bandwidth of an input signal with an adjustable gain. A driver amplifies an output signal S1 of the equalizer, and outputs the signal thus amplified. An amplifiers amplifies the output signal S1 of the equalizer. A first high-pass filter allows a predetermined bandwidth of the output signal of the equalizer to pass. A second high-pass filter allows a predetermined bandwidth of the output signal of the amplifier to pass. A first error amplifier amplifies the difference between the output signals of the first high-pass filter and the second high-pass filter so as to generate an error signal, and controls the gain of the equalizer according to the error signal thus generated. The amplifier has a configuration in which a single-stage differential amplifier employing MOSFETs is arranged. An adjustment resistor is provided between the drains of the differential transistor pair in order to increase the bandwidth.

摘要翻译： 均衡器以可调增益放大输入信号的预定带宽。 驱动器放大均衡器的输出信号S1，并输出被放大的信号。 放大器放大均衡器的输出信号S1。 第一高通滤波器允许均衡器的输出信号的预定带宽通过。 第二高通滤波器允许放大器的输出信号的预定带宽通过。 第一误差放大器放大第一高通滤波器和第二高通滤波器的输出信号之间的差，以产生误差信号，并且根据由此产生的误差信号来控制均衡器的增益。 放大器具有配置采用MOSFET的单级差分放大器的结构。 在差分晶体管对的漏极之间设置调节电阻器以增加带宽。