Exsync, Level-Controlled Mode With Asynchronous Timing - Basler A500k User Manual

3.3.2.1 ExSync, Level-controlled Mode with Asynchronous Timing

ExSync
Frame
Valid
Line
Valid
d = 1.8 µs (A504k)
d = 1.8 µs (A503k)
d = 7.2 µs (501k)
Integrate
Enabled
Figure 3-12: ExSync, Level-controlled Mode - Exposure Start and Stop when Frame Valid is Low
The ExSync signal goes low and goes high while the Frame Valid signal is low. The Integrate
Enabled signal is set to high while the effective exposure occurs. The start, stop, and duration of
the effective exposure are defined in the following ways (see Figure 3-12):
• The effective exposure starts d microseconds after the fall of the ExSync signal (exposure
start delay).
• The duration of the effective exposure is defined by period p.
• The effective exposure stops d microseconds after the rise of the ExSync signal.
ExSync signal can already go low up to 1 µs before Frame Valid is low.
p
d
k
Basler A500
PRELIMINARY
p
p
k k
A504 A503
Exposure as set by ExSync
1.8 µs 1.8 µs
Basic Operation and Features
ExSync Period
3.3 µs (A504k)
3.8 µs (A503k)
20.8 µs (A501k)
TIMING CHARTS ARE NOT DRAWN TO SCALE
k
A501
7.2 µs
3-15