公开(公告)号：US20160164479A1

公开(公告)日：2016-06-09

申请号：US14959195

申请日：2015-12-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： YOON-JOO EOM ,  SEUNG-JUN BAE ,  DAE-SIK MOON ,  JOON-YOUNG PARK ,  MIN-SU AHN

IPC: H03F3/45 ,  H03D7/14

CPC classification number: H03D7/1441 ,  H03F3/45183 ,  H03F2203/45051 ,  H03F2203/45466 ,  H03F2203/45674 ,  H03F2203/45702 ,  H03K19/00361

Abstract: A buffer circuit includes a first differential amplifier, second differential amplifier, third differential amplifier, and mixer. The first differential amplifier generates a positive differential signal and a negative differential signal based on an input signal and a reference voltage signal. The second differential amplifier generates a first signal based on the positive differential signal and the negative differential signal. The third differential amplifier generates a second signal having a different phase from the first signal based on the positive differential signal and the negative differential signal. The mixer outputs a signal, generated by mixing the first signal and the second signal, as an output signal.

Abstract translation: 缓冲电路包括第一差分放大器，第二差分放大器，第三差分放大器和混频器。 第一差分放大器基于输入信号和参考电压信号产生正差分信号和负差分信号。 第二差分放大器基于正差分信号和负差分信号产生第一信号。 第三差分放大器基于正差分信号和负差分信号产生具有与第一信号不同相位的第二信号。 混频器输出通过混合第一信号和第二信号而产生的信号作为输出信号。