Basler A202k - Page 34

Operation and Features
3-8 BASLER A202k
DRAFT
Case 1 - Exposure Start With Frame Valid High
Figure 3-6: ExSync, Programmable Mode - Exposure Start with Frame Valid High
If the ExSync signal rises while frame valid is high as shown in Figure 3-6:
• The actual start of exposure can be up to 25 µs later than the rise of the ExSync signal.
(This is commonly referred to as an exposure start jitter.)
• The actual length of the exposure time will be equal to the programmed exposure time plus
94.5 µs minus the jitter time.

As shown in Figure 3-6, FVAL must be low for at least 1 µs before the programmed
exposure time ends.
Exposure
(Timer 1)
Frame
Valid
Integrate
Enabled
Line
Valid
> 1 µs
EXSYNC
1231004100310021001
Timing
charts are
not drawn to
scale.