FEATURES & FUNCTIONALITY
Neo
SECTION 2
Page 53
2.7.2.1 - Global Shutter Internal triggering (Non-Overlap mode)
In Internal non-overlap modes, a new exposure does not start until the previous exposure has been read out.
The exact acquisition sequence depends on the exposure time. The two scenarios are shown in
Figure 21
below and
Figure 22
on the next page. If the exposure time is less than the time it takes to read out a frame,
then the exposure period occurs between reading out the reference and the signal frames as shown in
Figure
21
below.
In this scenario, the reference frame is read out before the Global Clear is performed. The negative edge of the
Global Clear begins an exposure. After the user-defined exposure time, the Charge Transfer pulse goes HIGH
to transfer charge from all pixels in the sensor. The signal frame is then read out.
Table 16: Global Shutter Internal Triggering - Short Exposures Timing Parameters
Parameter
Minimum
Maximum
Exposure
1 Row
1 Frame
Cycle Time (1/Frame Rate)
Ex 2 1 InterFrame
Ex 2 2^31 Rows
Acquisition Start Delay
1 Frame
Cycle Time
Exposure time of Frame
REF
FRAME 1
SIGNAL
FRAME 1
Frame Read out phase
Charge Transfer
Global Clear
FIRE
Acquisition Start
REF
FRAME 2
SIGNAL
FRAME 2
REF
FRAME 3
SIGNAL
FRAME 3
Figure 21: Global Shutter Internal Triggering - Short Exposures
Содержание Neo sCMOS
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