Specifications
27
Alvium CSI-2 Cameras User Guide V1.1.0
Maximum frame rates
Data was calculated for minimum exposure time and full resolution, using RAW8
pixel format. To increase frame rates, reduce region of interest and exposure time.
Frame rate jitter
Generally, some parameters can be changed during exposure without affecting the
timing. When the camera is operated in free run mode without triggering,
changing parameters during exposure leads to a frame rate jitter.
When parameters are entered, the next frame starts only after readout and sensor
reconfiguration delay are finished. When the camera is run in
AutoExposure
mode, the actual frame rate is less than the calculated value for the corresponding
exposure time. Please, consider frame rate jitter for your application.
Dropped frames or a viewer issue?
Alvium CSI-2 cameras are designed for a maximum bandwidth that does not exceed
board abilities.
If your setup does not provide sufficient bandwidth, frames will be dropped.
Even if bandwidth is sufficient, embedded boards may not be able to display all
images of an image stream. In this case, only the display is affected but no dropped
frames occur.
Affected models
The following effect applies to Alvium 1500 C-120 and C-500.
Alvium 1500 C-050 models are not affected.
Figure 4: Delayed exposure due to parameters change
džƉŽƐƵƌĞĐƟǀĞ
ZĞĂĚŽƵƚĐƟǀĞ
džƉŽƐƵƌĞĐƟǀĞ
New parameters
ZĞĐŽŶĮŐƵƌĂƟŽŶĚĞůĂLJ
ŶƚĞƌŝŶŐŶĞǁƉĂƌĂŵĞƚĞƌƐ͗
ZĞĂĚŽƵƚĐƟǀĞ