5-8
SE4400 Integration Guide
Figure 5-3. Mode 3 Image Acquisition Procedure Diagram
Negat
iv
e edge of
E
X
HT t
ri
ggers
the readi
ng of
t
he nex
t
hori
z
ont
al
l
ine of
t
he CCD
123T
Dum
m
y
dat
a i
s
bei
ng di
s
c
a
rded
640T
V
a
lid
hori
z
ont
al
pi
x
e
l
dat
a i
s
bei
ng read
(w
hen V
R
E
F
i
s
hi
gh)
T=1/
12M
Hz=83.
3ns
H=763T=63.
58us
EX
HT
HREF
45T
78T
EX
SFT
VREF
32H
+
13H
E
x
pos
ure Ti
m
e
1
480H
Va
lid
v
e
rt
ica
l lin
e
s
fr
om
E
x
pos
ure 1
are bei
ng read
45H
Dum
m
y
dat
a i
s
bei
ng di
s
c
a
rded
1 Full Fr
am
e
525H = 33.
38m
s
E
x
pos
ure Ti
m
e
2
480H
Va
lid
v
e
rt
ica
l lin
e
s
fr
om
E
x
pos
ure 2
are bei
ng read
45H
Dum
m
y
dat
a i
s
bei
ng di
s
c
a
rded
PCLK
EX
HT
Negat
iv
e edge of
E
X
HT m
u
s
t
oc
c
u
r
duri
ng t
h
is
peri
od of
t
im
e
.
t
1
=5ns
*
t
2
=28ns
*
763T = 63.
58us
1T
8-bi
t pi
x
e
l dat
a i
s
read out
w
it
h
eac
h pos
it
iv
e edge of
P
C
LK
(w
hen bot
h HRE
F &
V
R
E
F
are hi
gh)
+
This
ti
m
e
c
an be reduc
ed t
o
inc
reas
e t
he num
ber
of
f
ram
es
per s
e
c
ond.
* Thes
e t
im
e
s
are val
id
f
o
r any s
ize i
m
age.
A
ll ot
her
t
im
e
s
are val
id
onl
y f
o
r a 640x
480 i
m
age.
Summary of Contents for Symbol SE4400
Page 1: ...SE4400 Integration Guide ...
Page 2: ......
Page 3: ...SE4400 Integration Guide 72E 63399 04 Revision A January 2007 ...
Page 6: ...iv ...
Page 9: ...vii Contents Index Feedback ...
Page 10: ...viii SE4400 Integration Guide ...
Page 48: ...3 22 SE4400 Integration Guide ...
Page 78: ...5 20 SE4400 Integration Guide ...
Page 90: ...Index 4 SE4400 Integration Guide ...
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