Ex
Ca
LineV
Ca
Sync
mera Input
alid
mera Output
Notes specific to this mode
1 The reset-and-integration cycle is initiated by ExSync being taken low by the user; this has the effect
of starting integration as soon as possible at the beginning of the line period
2ExSync must be returned high at least "tSetup" prior to taking it low again to signal the end of the line period
3The user sets integration time "tIntegration" with the software command set
4 The user can read data from the CAM/CMOS - 2K.LS while LineValid is high as shown above.
Table 3.4.4 -- Mode 3: ExSync Synchronization with Programmable Integration Time
...Mode 3 is similar to Mode 2...
...the differences are that the reset-&-integration cycle is initiated when ExSync is taken low...
...and the duration of integration
tXFR
tLinePeriod
tReadout
2048 Clock Cycles
tReset3 tIntegration
nn+1
user-set with command software
Data Camera Output
Strobe Camera Output
Line Valid Camera Output
1 2 3 2047 2048
>tMinSync
tHoldLow tHoldHigh
>tSetup
Fairchild Imaging • CAM/CMOS-2K.LS Line Scan Camera User’s Manual • Rev A • 22 of 41