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VX6953CB 데이터시트(PDF) 18 Page - STMicroelectronics

부품명 VX6953CB
상세설명  5.1 megapixel EDOF camera module
PDF  107 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VX6953CB 데이터시트(HTML) 18 Page - STMicroelectronics

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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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