A driving timing control method of a cmos detector

Abstract

A driving timing control method for a CMOS detector, relating to the technical field of CMOS detector imaging control, solving the problems that existing CMOS detectors are prone to abnormal working conditions, resulting in blurred images, etc. The imaging controller includes power-on timing and SPI modules, training module, data conditioning module, drive sequence module, 422 communication and analysis module and data transmission module; the power-on sequence and SPI module are composed of counters and D flip-flops under the same source clock domain; the drive sequence control method of the present invention is based on training The optimal driving timing signal position setting ensures that the internal sampling signal of the detector is in a stable and reliable position, the working state is normal, and it will not appear unstable with the external environment such as temperature changes. The timing reset signal is resampled and output to ensure a relatively constant phase relationship between the timing reset signal and each drive control signal, and to avoid sampling metastable states inside the detector, thereby improving the stability and reliability of the application.

Description

technical field [0001] The invention relates to a driving sequence control method of a CMOS detector, in particular to a driving sequence control method of a CMOS detector applied by inputting a high-frequency differential clock. Background technique [0002] The CMOS detector needs to provide a reference clock from the outside first. In order to avoid the abnormal working state of the phase-locked loop (PLL) and affect the reliability, a high-frequency clock can be directly input. In order to control the working mode of the detector, the content of the internal SPI register is usually configured. In order to save configuration time, the SPI reading and writing frequency is usually set higher; in order to realize the normal operation of the detector, it is necessary to input multiple A driving and control signal; in addition, in the power-on and reset stages of the detector, it is also necessary to output a power-on reset signal and a timing reset signal. If the transition ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a driving sequence control method for a CMOS detector in order to solve the problem that the existing CMOS detector is prone to abnormal working conditions, resulting in blurred images, etc.

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