Dalsa Piranha 3 P3-80-08k40-00-R, Руководство пользователя

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Piranha 3 User Manual
Teledyne DALSA 03-032-10216-06
21
Symbol Definition Min (ns)
tLIN E PERIOD
(t
LP
)
The m inim u m and m axim u m line tim es m ad e u p of
tTransfer, tREADOUT p lu s tOVERH EAD to m eet
sp ecifications. 53,190 (12k)
106,382 (8k)
tTransfer The tim e from the recep tion of the falling ed ge of
EXSYN C to the rising ed ge of LVAL w hen p retrigger
is set to zero. Pretrigger red u ces the nu m ber of clocks
to the rising edge of LVAL but doesn’t change the time
to the first valid p ixel. If the fixed integration tim e
m od e of op eration is available and selected then the
integration tim e is ad d ed to the sp ecified valu e. 3,725 ±25
tw Fixed Int. Fixed Integration Tim e m od e of op eration for variable
exsync frequ ency. 800
tREADOUT Is the nu m ber of p ixels p er tap tim es the read ou t clock
p eriod . Pretrigger = 0. 38,400 (12k)
25,600 (8k)
tOVERH EAD Is the nu m ber of p ixels that m u st elap se after the
falling ed ge of LVAL before the EXSYN C signal can be
asserted . This tim e is u sed to clam p the internal
analog electronics 425±25
thPR Ap p lies w hen the PRIN exp osu re control featu re is
enabled . The PRIN signal m u st be held a m inim u m
tim e after the EXSYN C falling ed ge to avoid losing the
integrated charge
Don’t care
tw PR_LOW Minim u m Low tim e to assu re com p lete p hotosite reset 3,000
tPR_SET The nom inal tim e that the p hoto sites are integrating.
Clock synchronization w ill lead to integration tim e
jitter, w hich is show n in the sp ecification as +/ -
valu es. The u ser shou ld com m and tim es greater than
these to ensu re p rop er charge transfer from the
p hotosites. Failu re to m eet this requ irem ent m ay
resu lt in bloom ing in the H orizontal Shift Register. 3,000
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