发明申请
- 专利标题: Digital Automatic Gain Control Apparatus and Method in Burst Mode Optical Receiver
- 专利标题(中): 数字自动增益控制装置及突发模式光接收机
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申请号: US12086225申请日: 2006-12-05
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公开(公告)号: US20100014866A1公开(公告)日: 2010-01-21
- 发明人: Ho-Yong Kang , Hyun-Kyun Choi , Quan Le , Yool Kwon , Bong-Tae Kim , Sang-Gug Lee
- 申请人: Ho-Yong Kang , Hyun-Kyun Choi , Quan Le , Yool Kwon , Bong-Tae Kim , Sang-Gug Lee
- 优先权: KR10-2005-0117735 20051205; KR10-2006-0112887 20061115
- 国际申请: PCT/KR2006/005213 WO 20061205
- 主分类号: H04J14/08
- IPC分类号: H04J14/08
摘要:
A transimpedance amplifier for a burst mode optical communication converts a burst current signal into differential output voltage signals. Using a multi-level digital AGC mechanism, the transimpedance amplifier is rapidly adapted to a burst signal whose amplitude varies in a wide range. By using an adaptive level detection method, a multi-level digital AGC can be implemented without using ADC. In addition, because the transimpedance amplifier uses a selective reset generation scheme that performs a reset operation for itself after a high power burst, a burst mode operation can be performed without external reset signals. Accordingly, the transimpedance amplifier can be integrated with an optical detector within a TO-can. Furthermore, the transimpedance amplifier can have the burst mode capability and the best sensitivity.