公开(公告)号：US20140009191A1

公开(公告)日：2014-01-09

申请号：US13786481

申请日：2013-03-06

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chun-Hung Chen

IPC: H03K3/012

CPC classification number: H03K3/012 ,  H03F3/3023 ,  H03F3/45183 ,  H03F3/45219 ,  H03F2203/45634 ,  H03F2203/45674 ,  H03K19/00

Abstract: An output buffer is disclosed. The output buffer includes an input-stage circuit, an output-stage circuit and a compensation circuit. The compensation circuit includes a capacitor, a first switch, a second switch, a third switch, and a fourth switch. The input-stage circuit receives a differential input signal and outputting a response signal. The output-stage circuit receives the response signal and outputting an output signal. The first switch controls a connection between the input-stage circuit and a first terminal of the capacitor. The second switch controls the connection between an output terminal of the compensation circuit and a second terminal of the capacitor. The third switch controls the connection between the input-stage circuit and the second-terminal of the capacitor. The forth switch controls the connection between the output terminal of the compensation circuit and the first terminal of the capacitor.

Abstract translation: 公开了输出缓冲器。 输出缓冲器包括输入级电路，输出级电路和补偿电路。 补偿电路包括电容器，第一开关，第二开关，第三开关和第四开关。 输入级电路接收差分输入信号并输出​​响应信号。 输出级电路接收响应信号并输出​​输出信号。 第一开关控制输入级电路和电容器的第一端之间的连接。 第二开关控制补偿电路的输出端子和电容器的第二端子之间的连接。 第三开关控制输入级电路和电容器的第二端之间的连接。 第四开关控制补偿电路的输出端子与电容器的第一端子之间的连接。