Motorola MC919Z, Дополнение к руководству интегратора

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Technical Specifications A - 11
SE4500-HD
Figure A-4 shows the decode zone for the SE4500-HD. Typical values appear. Table A-6 lists the typical distances
for selected bar code densities. The minimum element width (or “symbol density”) is the width in mils of the
narrowest element (bar or space) in the symbol.
Figure A-4
SE4500-HD Decode Zone
Depth of Field
13 mil (100% UPC)
6.4
5 mil PDF417
1.6 6.8
1.6 3.8
15 mil PDF417
0
cm
W
i
d
t
h
o
f
F
i
e
l
d
0
5.1
4.0 10.2
10.2
*
* Minimum distance determined by symbol length and scan angle.
4.0
in.
Note: Typical performance at 73°F (23°C)
on high quality symbols in normal room light.
Vcc = 3.3V
7.5 mil Code 39
*
6.1
6.67 mil PDF417
1.3
4.5
10 mil PDF417
*
5.1
4 mil PDF417
1.8 3.5
2.0
5.1
2.0
3 mil Code 39
1.6
3.8
5 mil Code 39
*
5.0
5 mil Data Matrix
1.8
3.6
In .
c m
0
0 12
30.5
2
5.1
4
10.2
6
15.2
8
20.3
10
25.4
11.1
20 mil Code 39
*
2.0
6.1
15 mil Data Matrix