XIMEA xiQ series Technical Manual page 63

Description:
DownS = Current camera DownSampling (XI_PRM_DOWNSAMPLING)
t = Trigger (Digital Input) to Strobe (Digital Output) (on some models is listed: Off->On change / On->Off change)
eio
t = Strobe (Sensor) to Digital Output (on some models is listed: Off->On change / On->Off change)
exp
t = Start of exposition to Exposure Active Digital Output
expo
LC = Current Line Count (XI_PRM_ HEIGHT)
BWF = Bandwidth Factor see table below
t = Current Exposure Time set (XI_PRM_EXPOSURE)
exps
Conditions: XI_PRM_DEBOUNCE_EN=0 (off).
Bandwidth factor
Bandwidth factor is a number reflecting the ratio between the maximum sensor frequency and the current sensor frequency,
calculated from the Bandwidth Limit.
BWF = F / F
max limit
Where F is maximum possible clock for used sensor in MHz and F
max
set in API (XI_PRM_LIMIT_BANDWIDTH). F
MQ003xG-CM
F = 24MHz
max
F = 10MHz
min
325 * BWL

F
limit
10368 * BPP
t = 40.625*BWF [µs]
fot
BPP number of bytes per pixel
BWL bandwith limit in Mbit/s
MQ042xG-CM and MQ022xG-CM
F = 48MHz
max
F = 5Mhz
min
129 * BW

F
limit
8192 * BPP
t = 64.5 * BWF [µs]
fot
BPP number of bytes per pixel
BW bandwidth in Mbit/s
Minimum trigger period (t
Minimum trigger period can be calculated using the following formula:
t = t + t
trig_min exp
t = t (When exposure time is significantly shorter then readout time)
trig_min rd
t = t + t
trig_min exps
Example for MQ022MG-CM, Exposure time = 500µs, image = 2048 pixels width x 1088 pixels height with maximum bandwidth
and 1 byte per pixel:
t = 10µs + (37.625 + 5.375 * 1088 lines) * 1 = 5895µs
trig_min
xiQ - Technical Manual Version 1.0
is set in 1MHz steps and cannot go lower than F
limit

6 LC
* [ MHz ]
LC

12 LC
* [ MHz ]
LC
)
trig_min
(When exposure time is longer than readout time)
exps
(When exposure is smaller than readout time but the difference is less than t
fot
is used clock depending on Bandwidth Limit parameter
limit
.
min
)
fot
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