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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VX6953CB датащи(PDF) 18 Page - STMicroelectronics |
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VX6953CB датащи(HTML) 18 Page - STMicroelectronics |
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18 / 107 page  Functional description VX6953CB 18/107 8209023 Rev 5 3.2 Digital video block The main features of the digital video block are: • frame rate: 16.65 frame/s maximum can be reduced down to less than 3 frame/s (5.0 Mpixel) using frame extension • automatic dark calibration to ensure consistent video level over varying scenes • on-chip power-on-reset cell • output format: 5.0 Mpixel 2608 x 1960 (maximum) 3.2.1 Dark calibration algorithm The VX6953CB runs a dark calibration algorithm on the raw image data to control the video offsets caused by dark current. This ensures that a high quality image is output over a range of operating conditions. The first frame dark level is correctly calibrated, for subsequent frames the adjustment of the dark level is damped by a leaky integrator function to avoid possible frame to frame flicker. 3.3 Device operating modes Figure 5. System state diagram Power-OFF CSI-2 HW-standby CSI-2 SW_standby CSI-2 CSI-2 STREAMING SW_standby CCP2 CCP2 STREAMING Power supplies OFF Power supplies OFF Power supplies OFF Power supplies ON CCI CCI CCI CCI XSHUTDOWN XSHUTDOWN Power supplies OFF XSHUTDOWN is high CCI is LOW XSHUTDOWN is LOW is LOW Power supplies OFF |
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