Analog device of external synchronous time-delayed-integration charge coupled device
A charge-coupled device and analog device technology, applied in the field of TDI CCD, can solve the problems of complex structure, complex process and high cost
Inactive Publication Date: 2011-11-16
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
In scientific research tasks, due to the requirements of performance and indicators, it is often necessary to customize a new type of TDI CCD, which requires a certain development cycle and delivery cycle, sometimes as long as one to two years, which will seriously affect the progress of scientific research and production tasks. In addition, the cost of TDI CCD is often high, and the process is complicated. Some new TDI CCDs have very complicated driving requirements, and often use multiple power supplies to supply power together, and the power supply sequence must meet a certain sequence. If the requirements are not met, or If the protection is not good, it is easy to cause damage to the device and cause huge losses, which often happens during the debugging stage of the circuit
[0003] At present, the industry has begun to design various TDI CCD waveform generators to solve the problem of test substitutes, but they are all complete simulations of the electrical performance of TDI CCDs, because of their complex structure, high cost, and large volume. in actual application environment
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[0020] Depend on figure 1 As shown, the external synchronous integral delay charge-coupled device simulation device includes: pin electrical characteristic simulation circuit, drive feature extraction circuit, OS signal synthesis circuit, delay characteristic control circuit, sensitivity control circuit and integral series control circuit; the pin electrical characteristic simulation circuit receives external signals and transmits the signal to the driving characteristic extraction circuit; the delay characteristic control circuit sends signals to the driving characteristic extraction circuit; the driving characteristic extraction circuit receives the pin electrical characteristic simulation circuit and the delay characteristic control circuit Send the signal and transmit the signal to the OS signal synthesis circuit; the sensitivity control circuit and the integral series control circuit send the signal to the OS signal synthesis circuit; the OS signal synthesis circuit receiv...
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The invention discloses an analog device of an external synchronous time-delayed-integration charge coupled device (TDI CCD), which belongs to the field of TDI CCDs. The device comprises a pin electrical characteristic analog circuit, a drive characteristic extraction circuit, an OS (Operating System) signal synthesis circuit, a delay characteristic control circuit, a light sensitivity control circuit and an integration series control circuit. By adopting the analog device, the analog of actual TDI CCD contour dimension, input / output pin electrical characteristics, output video signals and light sensitivity characteristics are realized. The analog of a TDI CCD signal is realized by applying the external synchronous theory, thus the actual contour size of the device is equivalent to the contour size of the TDI CCD, and the analog device has the characteristics of simple structure and low cost and can completely replace the actual TDI CCD to finish various experiment works.
Description
technical field [0001] The invention belongs to the field of TDI CCD (Time Delay and Intergration Charge-Couple Device, integral delay charge-coupled device), in particular to an analog device of an external synchronous TDI CCD. Background technique [0002] TDI CCD has the outstanding feature of obtaining high sensitivity without sacrificing spatial resolution and working speed, which makes it have broad application prospects in high-speed and low-light fields. In scientific research tasks, due to the requirements of performance and indicators, it is often necessary to customize a new type of TDI CCD, which requires a certain development cycle and delivery cycle, sometimes as long as one to two years, which will seriously affect the progress of scientific research and production tasks. In addition, the cost of TDI CCD is often high, and the process is complicated. Some new TDI CCDs have very complicated driving requirements, and often use multiple power supplies to supply p...
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Inventor 刘辉马天波李云飞郭永飞
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI