Spyder 3 CL User's Manual
PRELIMINARY
21
DALSA
03-032-20008-03
Table 9: Spyder 3 Input and Output
Symbol
Definition
Min (ns)
Max
(ns)
twSYNC
The minimum low width of the EXSYNC pulse when
not in SMART EXSYNC mode.
100
twSYNC
(SMART)
*
The minimum low width of the EXSYNC pulse when
in SMART EXSYNC modes to guarantee the
photosites are reset.
3,000
twSYNC_INT
The minimum width of the high pulse when the
“SMART EXSYNC” feature is turned off
100
twSYNC_INT
(SMART)
*
Is the integration time when the “SMART EXSYNC”
feature is available and turned on. Note that the
minimum time is necessary to guarantee proper
operation.
3,000
tLINE PERIOD
(t
LP
)
The minimum and maximum line times made up of
tTransfer, tREADOUT plus tOVERHEAD to meet
specifications.
14,700 (1k 2 tap)
27,778 (1k 1 tap)
27,778 (2k 2 tap)
54,054 (2k 1 tap)
55,775 (4k 2 tap)
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.
3,725 ±25 (1k and 2k)
4,100±25 (4k)
twFixed Int.
Fixed Integration Time mode of operation for variable
exsync frequency.
800
tREADOUT
Is the number of pixels per tap times the readout clock
period.
25,600 (1k 1 tap))
12,800 (1k 2 tap)
51,200 (2k 1 tap)
25,600 (2k 2 tap)
51,200 (4k 2 tap)
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
425±25
(All models)
thPR
Applies when the PRIN exposure control feature is
enabled. The PRIN signal must be held a minimum
time after the EXSYNC falling edge to avoid losing the
integrated charge
To Be Determined
twPR_LOW
Minimum Low time to assure complete photosite reset 3,000
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.
3,000
Содержание Spyder 3 S3-10-01k40-00-R
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