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IMAGE SENSOR SOLUTIONS
Functional Description (continued)
The KAC-9617 integrated timing and control circuit allows up to
two break points to be programmed such that a piecewise linear
response can be achieved as shown with the green lines in fig-
Saturation level
ure 21.
To operate the sensor in piecewise linear mode a 56k ohm resis-
tor must be connected to pin 41 and the following sequence
must be written after system reset:
Address (Hex)
Value
03Hex
set bit 3 to a logic 1
Level 2
Level 1
Slope 1
Slope 2
Maximum
32Hex
40Hex
Slope 0
Illumination (Lux)
illumination level
30Hex
03Hex
40Hex
set bit 3 to a logic 0
Figure 22. Break Points Programming
The maximum illumination level (see figure 22) that can be
detected by the sensor is determined by the settings of the level
and slope registers.
Two registers are provided to define each break point. The Level
register and the Sensitivity register.
The sensitivity of the first branch, (slope 0 in figure 22), is deter-
mined by the time settings and the image sensor characteristics.
The sensitivity (slope), of the other branches is determined by
the value programmed in the Sensitivity registers. The levels at
which the piecewise linear curve switches from one slope to
another are determined by the values programmed in the Level
registers.
For a full explanation of how to use the KAC-9617 in piecewise
linear mode refer to LM9618/28 Application note 2.
5.7
Frame Rate Programming Guide
The table bellow can be used as a guide for programming the sensor. Note that it is assumed that the sensor is being driven with a
48MHz clock. All programmed values are given in decimal.
register
address
fps
30
15
7.5
3.75
25
12.5
6.25
3.125
5
4
3
2
1
vclkgen
05hex
4
4
4
4
4
5
5
4
4
5
5
6
6
rdelayh
15hex
[10:8]
0
0
0
3
0
0
0
0
2
0
0
0
3
rdelayl
16hex
[7:0]
0
0
0
12
172
0
0
156
255
0
0
200
241
fdelayh
17hex
[11:8]
0
2
6
6
0
1
5
14
4
10
14
13
15
fdelayl
18hex
[7:0]
9
40
12
12
0
226
188
14
23
12
14
248
126
srows
0Bhex
[8:1]
0
0
0
0
0
0
0
0
0
0
0
0
0
srowe
0Chex
[8:1]
251
251
251
251
251
251
251
251
251
251
251
251
251
dwlsb
12hex
50
50
50
50
50
50
50
50
50
50
50
50
50
www.kodak.com/go/imagers 585-722-4385
18
Email:imagers@kodak.com
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相关PDF资料
KAC-9627
IC SENSOR IMAGE VGA 48CLCC
KB-A100SRW
LIGHT BAR 660NM RED 8.89X3.81MM
KB-B100SRW
LIGHT BAR 660NM RED 19.05X3.81MM
KB-C100SRW
LIGHT BAR 660NM RED 8.89X8.89MM
KB-D100SRW
LIGHT BAR 660NM RED 8.89X3.81MM
KB-E100SRW
LIGHT BAR 660NM RED 8.89X3.81MM
KB-F100SRW
LIGHT BAR 660NM RED 19.05X3.81MM
KB-G100SRW
LIGHT BAR 660NM RED 8.89X8.89MM
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