Dalsa Spyder3 User Manual page 17

Spyder3 Color Manual
Table 10: Spyder3 Color Input and Output
Symbol Definition
twSYNC The minimum low width of the EXSYNC pulse when not
in SMART EXSYNC mode.
twSYNC The minimum low width of the EXSYNC pulse when in
*
(SMART)
SMART EXSYNC modes to guarantee the photosites are
reset.
twSYNC_INT The minimum width of the high pulse when the
―SMART EXSYNC‖ feature is turned off
twSYNC_INT Is the integration time when the ―SMART EXSYNC‖
feature is available and turned on. Note that the
(SMART)
*
minimum time is necessary to guarantee proper
operation.
tLINE PERIOD The minimum and maximum line times made up of
tTransfer, tREADOUT plus tOVERHEAD to meet
(t )
LP
specifications.
tTransfer The time from the reception of the falling edge of
EXSYNC to the rising edge of LVAL when pretrigger is
set to zero. Pretrigger reduces the number of clocks to
the rising edge of LVAL but doesn't change the time to
the first valid pixel. If the fixed integration time mode of
operation is available and selected then the integration
time is added to the specified value.
twFixed Int. Fixed Integration Time mode of operation for variable
exsync frequency.
tREADOUT Is the number of pixels per tap times the readout clock
period.
tOVERHEAD Is the number of pixels that must elapse after the falling
edge of LVAL before the EXSYNC signal can be
asserted. This time is used to clamp the internal analog
electronics
twPR_LOW Minimum Low time to assure complete photosite reset
tPR_SET The nominal time that the photo sites are integrating.
Clock synchronization will lead to integration time jitter,
which is shown in the specification as +/- values. The
user should command times greater than these to ensure
proper charge transfer from the photosites. Failure to
meet this requirement may result in blooming in the
Horizontal Shift Register.
DALSA
Min (ns)
100
3,000
100
3,000
55,550 (2k 2 tap)
11,1100 (4k 2 tap)
1, 450 ±50 (2k)
1, 650 ±50 (4k)
800
52,975 (2k 2 tap)
104,275 (4k 2 tap)
50 ±12 (2k)
210 ±12 (4k)
3,000
3,000
03-032-20059-01
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