发明名称 |
TRANSIMPEDANCE AMPLIFIER CIRCUIT FOR OPTICAL RECEIVER IN OPTICAL COMMUNICATION SYSTEM |
摘要 |
A transimpedance amplifier circuit for an optical receiver in an optical communication system in which a range of an increase/decrease in bandwidth according to gain change is reduced by a bandwidth adjustor. The circuit includes: a photodiode (PD) for generating a current signal by photoelectric conversion of an input optical signal; a Transimpedance Amplifier (TIA) for converting the current signal input from the photodiode into a voltage signal; an auto gain adjustor for adjusting feedback resistances of the transimpedance amplifier; a photodiode parallel capacitor reducer for reducing a parallel capacitor current of the photodiode; and a bandwidth adjustor for reducing a range of an increase/decrease in bandwidth according to an increase/decrease in gain of the transimpedance amplifier.
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申请公布号 |
US2009051442(A1) |
申请公布日期 |
2009.02.26 |
申请号 |
US20080193984 |
申请日期 |
2008.08.19 |
申请人 |
SEO JA-WON;SIM YUN AH;LEE SANG-GUG |
发明人 |
SEO JA-WON;SIM YUN AH;LEE SANG-GUG |
分类号 |
H03F3/08 |
主分类号 |
H03F3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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