Fairchild CAM/CMOS-2K.LS - Manual (Page 23)

Ex
C
C
Sync
amera Input
LineValid
amera 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
2 ExSync must be returned high at least "t
Setup
" prior to taking it low again to signal the end of the line period
3 The user sets integration time "t
Integration
" with the software command set
4 The user can read data from the CAM/CMOS - 2K.LS while LineValid is high as shown above.
Figure 3.4.3 -- 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
t
XFR
t
LinePeriod
t
Readout
2048 Clock Cycles
t
Reset3
t
Integration
n n+1
user-set with command software
Data Camera Output
Strobe Camera Output
Line Valid Camera Output
1 2 3 1023 1024
>t
MinSync
t
HoldLow
t
HoldHigh
>t
Setup
Fairchild Imaging • CAM/CMOS-2K.LS Line Scan Camera User’s Manual • Rev C• 23 of 42