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清华大学 [2]
厦门大学 [2]
长春光学精密机械与物... [1]
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2010 [3]
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小型核磁共振波谱仪控制台核心板高速PCB设计
学位论文
2013, 2013
周辉来
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浏览/下载:1/0
  |  
提交时间:2016/01/13
小型化核磁共振波谱仪
高速电路PCB
HyperLynx
miniature NMR spectrometer
high-speed circuit PCB
HyperLynx
核磁共振室温匀场电源与场频联锁系统一体化——核心板高速电路设计
学位论文
2012, 2012
王玉
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浏览/下载:4/0
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提交时间:2016/02/14
核磁共振波谱仪
高速电路
印制板
NMR Spectrometer
High Speed Circuit
PCB
高速PCB电源完整性研究
期刊论文
2010, 2010
白同云
;
BAI Tong-yun
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浏览/下载:2/0
Research into high speed PCB power integration
期刊论文
2010, 2010
Bai Tong-yun
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Design of high-speed low-noise pre-amplifier for CCD camera (EI CONFERENCE)
会议论文
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
Xue X.
;
Zhang S.
;
Li H.
;
Guo Y.
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浏览/下载:20/0
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提交时间:2013/03/25
Pre-amplifier circuit is critical for the noise performance of the high speed CCD camera. Its main functions are amplification and impedance transform. The high speed and low noise pre-amplifier of CCD camera is discussed and designed in this paper. The high speed and low noise operational amplifier OPA842 is adopted as the main part. The gain-set resistors for the amplifier are designed optimally. The different precision gain-set resistors are swept using Monte Carlo method. CCD video signal which has high DC offset voltage is AC coupled to the amplifier. The output signal of the amplifier is source terminated using 50 ohms matching resistor so as to transmit the video signal through coaxial cable. When the circuit works in high speed
the PCB will have important effect to circuit performance and can even cause the amplifier unstable due to the parasitic problem of PCB. So the parasitic model of the PCB is established and the PCB layout design issues are also presented. The design result shows that the pre-amplifier can be used in the camera whose pixel rate could be up to 40 MHz and its input referred noise density is about 3 nV/Hz 1/2. 2010 Copyright SPIE - The International Society for Optical Engineering.
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