Camera interfaces
MANTA Technical Manual
V6.0.1
102
Trigger rules
•
The
end of exposure
will always trigger the next Readout.
•
The
end of exposure
must always end after the current Readout.
•
The
start of exposure
must always correspond with the Interline Time if
Readout is true.
•
Exposure start delay
equals the Readout time minus the Registered Expo-
sure Time.
Triggering during the Idle State
For applications requiring the shortest possible trigger Latency and the small-
est possible trigger jitter the User trigger signal should be applied when Imag-
ing is false and Idle is true.
Tpd
Propagation delay between the User trigger and
the Logic trigger
Exposure
... is high when the camera image sensor is
integrating light.
Readout
... is high when the camera image sensor is reading
out data.
Trigger latency
Time delay between the user trigger and the start
of exposure
Trigger jitter
Error in the trigger latency time
Trigger ready
... indicates to the user that the camera will accept
the next trigger.
Registered exposure
time
... is the exposure time value currently stored in the
camera memory.
Exposure start delay
... is the Registered Exposure Time subtracted from
the Readout time and indicates when the next
exposure cycle can begin such that the exposure
will end after the current Readout.
Interline time
... is the time between sensor row readout cycles.
Imaging
... is high when the camera image sensor is either
exposing and/or reading out data.
Idle
... is high if the camera image sensor is not expos-
ing and/or reading out data.
Note
The
user trigger pulse width
should be at least three times the
width of the trigger latency as indicated in Chapter
Specifica-
tions
on page 19ff.
Term
Definition
Table 28: Trigger definitions
