- 专利标题: TRANSIMPEDANCE AMPLIFIER FOR HIGH-SPEED OPTICAL COMMUNICATIONS BASED ON LINEAR MODULATIONS
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申请号: EP16382431.1申请日: 2016-09-15
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公开(公告)号: EP3297184B1公开(公告)日: 2018-12-12
- 发明人: RODRÍGUEZ-PÉREZ, Alberto , ROLÍNDEZ ALBERICH, Luis , PÉREZ DE ARANDA ALONSO, Rubén
- 申请人: Knowledge Development for POF SL
- 申请人地址: Ronda de Poniente Num. 14 Planta 2, Puerta C D 28760 Tres Cantos (Madrid) ES
- 专利权人: Knowledge Development for POF SL
- 当前专利权人: Knowledge Development for POF SL
- 当前专利权人地址: Ronda de Poniente Num. 14 Planta 2, Puerta C D 28760 Tres Cantos (Madrid) ES
- 代理机构: Grünecker Patent- und Rechtsanwälte PartG mbB
- 主分类号: H04B10/69
- IPC分类号: H04B10/69 ; H03G3/30
摘要:
This invention relates to a optical receiver circuit (200) comprising: at least one photo detector (207) configured to convert a received light signal to an input current signal, a transimpedance amplifier circuit (201) with an input to receive the input current signal from the at least one photo detector (207) and being configured to convert the received input current signal to an output voltage signal to generate an output signal of the transimpedance amplifier circuit (201), wherein the transimpedance amplifier circuit comprises a plurality of gain amplifier stages (209, 210, 211), a DC restoration component (205), wherein the DC restoration component (205) is configured to receive the output voltage signal of the transimpedance amplifier circuit (201) for restoring the DC component of the received current signal and configured for outputting a corresponding current signal, and an automatic gain control component (204) configured for controlling via at least one programmable feedback resistor (226, 227) the equivalent transimpedance of the transimpedance amplifier circuit based on the signal output by the DC restoration component (205) to provide a constant output voltage amplitude for different current ranges of the input current signal.
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