公开(公告)号：WO2014177665A8

公开(公告)日：2015-06-11

申请号：PCT/EP2014058937

申请日：2014-04-30

Applicant: SILICON LINE GMBH

Inventor： HIDRI OLS ,  GROEPL MARTIN ,  HOELTKE HOLGER

IPC: H04B10/69

CPC classification number: H04B10/6931 ,  H03F3/08 ,  H03F17/00 ,  H04B10/693 ,  H04B10/6933 ,  H04B2210/074

Abstract: Circuit arrangement (CR; CR') for receiving multilevel optical signals (SI) from at least one optical guide (GU), said multilevel signals resulting from superposing a high speed data signal and a low speed data signal, said circuit arrangement (CR; CR') comprising: • - at least one light-receiving component (PD) for converting the optical signals (SI) into electrical current signals (Ipp), • - at least one transimpedance amplifier (TA), being provided with the electrical current signals (I pp) from the light-receiving component (PD), • - at least one automatic gain controller (AG) for controlling the gain or transimpedance (R) of the transimpedance amplifier (TA), in particular in order to keep the amplitude of the output (V out- data-analog) of the transimpedance amplifier (TA) to a desired, for example constant, level for different levels of the electrical current signals (I PD), • - at least one integrator (IN) in a feedback path (FP), said integrator (IN) generating a control signal (Vint), • - at least one voltage-controlled current source (CS), being provided with the control signal (V int) from the integrator (IN), • - at least one limiter (LI) acting as a comparator and generating in its output a logic level for positive or negative voltages in its input, • - at least one second transimpedance amplifier (TA2) arranged in parallel to the transimpedance amplifier (TA), and • - at least one automatic offset controller (AO) for setting the voltage (Voffset) for the second transimpedance amplifier (TA2).

Abstract translation: 用于从至少一个光导（GU）接收多电平光信号（SI）的电路装置（CR; CR'），由叠加高速数据信号和低速数据信号而产生的所述多电平信号，所述电路装置（CR; CR' CR'）包括： - 至少一个用于将光信号（SI）转换成电流信号（Ipp）的光接收部件（PD）， - 至少一个跨阻抗放大器（TA），其被提供有电流 来自光接收部件（PD）的信号（I pp）， - 至少一个用于控制跨阻抗放大器（TA）的增益或跨阻抗（R）的自动增益控制器（AG），特别是为了保持 跨电阻放大器（TA）的输出（V out-data-analog）的振幅为不同电平电流信号（I PD）的期望的例如恒定电平， - 至少一个积分器（IN） 在反馈路径（FP）中，所述积分器（IN）产生对照 （Vint）， - 至少一个压控电流源（CS），其被提供有来自积分器（IN）的控制信号（V int）; - 至少一个用作比较器的限幅器（LI） 在其输出端产生正电压或负电压的逻辑电平; - 至少一个平行于跨阻抗放大器（TA）布置的第二跨阻抗放大器（TA2）;以及 - 至少一个自动偏移控制器（AO ）用于设定第二跨阻抗放大器（TA2）的电压（Voffset）。