Instruction manual

Prosilica GC Technical Manual V2.1.0

Camera trigger

Trigger timing diagram

Notes on triggering

Figure 39: Prosilica GC internal signal timing waveforms

Term Definition

User trigger Trigger signal applied by the user (hardware

trigger, software trigger)

Logic trigger Trigger signal seen by the camera internal logic

(not visible to the user)

Tpd Propagation delay between the user trigger and the

logic trigger

Exposure High when the camera image sensor is integrating

light

Readout 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

Table 20: Explanation of signals in timing diagram

User trigger

Logic trigger

Exposure

Readout

Trigger ready

Imaging

Interline time

Idle

Tpd

Trigger

latency

Exposure

start delay

Trigger

jitter

Registered

exposure time

Readout time

NN+1

Note: Jitter at the

beginning of an exposure

has no eect on the

length of exposure.