公开(公告)号：US20170373761A1

公开(公告)日：2017-12-28

申请号：US15195863

申请日：2016-06-28

Applicant: INPHI CORPORATION

Inventor： Kevin Parker ,  Lawrence Tse ,  Kenji Suzuki ,  Brian Wall ,  Stephane Dallaire ,  Florin Pera

IPC: H04B10/66 ,  H04L25/03

CPC classification number: H04B10/66 ,  H04L25/03006

Abstract: An optical receiver that recovers data is disclosed. The optical receiver includes a photodetector configured to convert an optical signal into a current signal, and a TIA (Transimpedance Amplifier) configured to operate according to a set of parameters to convert the current signal to a voltage signal. The optical receiver also includes an equalizer configured to process the voltage signal to produce a processed signal having recovered data from the optical signal, and to produce one or more equalization metrics. According to an embodiment of the disclosure, the optical receiver has a feedback processor configured to automatically tune operation of the TIA by adjusting at least one of the parameters of the TIA based on the one or more equalization metrics. This may effect a change in performance or power consumption of the optical receiver while receiving and recovering data. A corresponding method for recovering data is also disclosed.

公开(公告)号：US10312873B2

公开(公告)日：2019-06-04

申请号：US15863473

申请日：2018-01-05

Applicant: INPHI CORPORATION

Inventor： Florin Pera ,  Stephane Dallaire ,  Brian Wall

IPC: H03F1/08 ,  H03F1/30 ,  H03F3/16 ,  H03F3/45 ,  H03G1/00 ,  H03G3/30 ,  H04B10/54 ,  H04B10/69 ,  H04Q11/00

Abstract: Split cascode circuits include multiple cascode paths coupled between voltage supply rails. Each cascode path includes a pair of controllable switches. A feedback path is provided for at least one of the cascode circuit paths. An active load circuit may also have a split cascode structure. Multiple-stage circuits, for implementation in Trans-Impedance Amplifiers (TIAs) or analog Receive Front-End modules (RXFEs), for example, include multiple stages of split cascode circuits.

公开(公告)号：US09899973B2

公开(公告)日：2018-02-20

申请号：US15073735

申请日：2016-03-18

Applicant: INPHI CORPORATION

Inventor： Florin Pera ,  Stephane Dallaire ,  Brian Wall

IPC: H03F1/02 ,  H03F3/193 ,  H03M1/66 ,  H03F3/45 ,  H03F3/16 ,  H03G3/30 ,  H04Q11/00 ,  H04B10/54

CPC classification number: H03F3/45179 ,  H03F1/08 ,  H03F1/301 ,  H03F3/16 ,  H03F3/45475 ,  H03F3/45941 ,  H03F2200/135 ,  H03F2200/18 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2203/45212 ,  H03F2203/45288 ,  H03G1/0029 ,  H03G1/0088 ,  H03G3/30 ,  H04B10/541 ,  H04B10/6931 ,  H04Q11/0071 ,  H04Q2011/0013 ,  H04Q2011/0035

Abstract: Split cascade circuits include multiple cascade paths coupled between voltage supply rails. Each cascade path includes a pair of controllable switches. A feedback path is provided for at least one of the cascade circuit paths. An active load circuit may also have a split cascade structure. Multiple-stage circuits, for implementation in Trans-Impedance Amplifiers (TIAs) or analog Receive Front-End modules (RXFEs), for example, include multiple stages of split cascade circuits.

公开(公告)号：US10122472B2

公开(公告)日：2018-11-06

申请号：US15195863

申请日：2016-06-28

Applicant: INPHI CORPORATION

Inventor： Kevin Parker ,  Lawrence Tse ,  Kenji Suzuki ,  Brian Wall ,  Stephane Dallaire ,  Florin Pera

IPC: H04B10/66 ,  H04L25/03

Abstract: An optical receiver that recovers data is disclosed. The optical receiver includes a photodetector configured to convert an optical signal into a current signal, and a TIA (Transimpedance Amplifier) configured to operate according to a set of parameters to convert the current signal to a voltage signal. The optical receiver also includes an equalizer configured to process the voltage signal to produce a processed signal having recovered data from the optical signal, and to produce one or more equalization metrics. According to an embodiment of the disclosure, the optical receiver has a feedback processor configured to automatically tune operation of the TIA by adjusting at least one of the parameters of the TIA based on the one or more equalization metrics. This may effect a change in performance or power consumption of the optical receiver while receiving and recovering data. A corresponding method for recovering data is also disclosed.