公开(公告)号：US20160112016A1

公开(公告)日：2016-04-21

申请号：US14698974

申请日：2015-04-29

Applicant: Cisco Technology, Inc.

Inventor： Kadaba LAKSHMIKUMAR ,  Craig APPEL

IPC: H03F3/08 ,  H03F1/02 ,  H03F3/45

CPC classification number: H03F3/08 ,  H03F1/0205 ,  H03F1/086 ,  H03F3/45076 ,  H03F3/45183 ,  H03F3/45659 ,  H03F2200/135 ,  H03F2200/75 ,  H03F2203/45026 ,  H03F2203/45082 ,  H03F2203/45088 ,  H03F2203/45116 ,  H03F2203/45208 ,  H03F2203/45221 ,  H03F2203/45336 ,  H03F2203/45402 ,  H03F2203/45418 ,  H03F2203/45434 ,  H03F2203/45436 ,  H03F2203/45481 ,  H03F2203/45594 ,  H03F2203/45604 ,  H03F2203/45642 ,  H03F2203/45648 ,  H03F2203/45664

Abstract: Embodiments generally relate to a conversion arrangement, a driver arrangement, and a method of producing a complementary complementary metal-oxide-semiconductor (CMOS) output signal for driving a modulator device. The conversion arrangement includes a differential amplifier configured to produce a first amplified signal based on the differential input signal, and at least two transimpedance amplifiers (TIAs) coupled with respective outputs of the differential amplifier and configured to produce a second amplified signal based on the first amplified signal. Respective bias voltages for the TIAs are based on the first amplified signal. The conversion arrangement further includes a common-mode feedback arrangement coupled with outputs of the TIAs and configured to control the first amplified signal based on the second amplified signal, thereby controlling the bias voltages, wherein the complementary CMOS output signal is based on the second amplified signal.

Abstract translation: 实施例通常涉及转换装置，驱动器装置和产生用于驱动调制器装置的互补金属氧化物半导体（CMOS）输出信号的方法。 转换装置包括：差分放大器，被配置为基于差分输入信号产生第一放大信号，以及至少两个跨阻抗放大器（TIAs），其耦合到差分放大器的相应输出端，并被配置为基于第一信号产生第二放大信号 放大信号。 TIA的相应偏置电压基于第一个放大信号。 转换装置还包括与TIA的输出耦合并配置为基于第二放大信号控制第一放大信号的共模反馈装置，从而控制偏置电压，其中互补CMOS输出信号基于第二放大 信号。