IC-LFL1402 Datasheet, PDF (7/8 Pages) IC-Haus GmbH – 256x1 LINEAR IMAGE SENSOR

iC-LFL1402
256x1 LINEAR IMAGE SENSOR
preliminary
Rev A3, Page 7/8
254 255 256 1
2
3
4
...
255 256 257 258 259
CLK
SI
V(AO)
SNH
SNH256
NRCI
Pix254 Pix255 Pix256 Pix1
Pix2
Pix3
...
Pix255 Pix256
Pix1
Integration Time
Figure 6: Clock pulse continued without giving a new integration start signal
Operation with the shutter function
Integration can be stopped at any time via pin DIS,
i.e. the photodiodes are disconnected from their cor-
responding integration capacitor when DIS is high and
the current integration capacitor voltages are main-
tained. If this pin is open or switched to GND the pixel
photocurrents are summed up by the integration ca-
pacitors until the next successive SI signal follows.
1
2
3
4
5
6 ...
255 256 1
CLK
SI
SNH
NRCI
DIS
PIX SAMPLE−C
Integration
Disabled
Integration
Enabled
Integration
Disabled
Figure 7: Defining the integration time via shutter input DIS
External bias current setting
In order to reduce the power consumption of the device
an external reference current can be supplied to pin
RSET which reduces the maximum readout frequency,
however. To this end a resistor must be connected
from VCC to RSET. If this pin is not used, it should
be connected to GND.
This specification is for a newly developed product. iC-Haus therefore reserves the right to change or update, without notice, any information contained herein,
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