IC-LFM Datasheet, PDF (7/9 Pages) IC-Haus GmbH – 64x1 LINEAR IMAGE SENSOR

iC-LFM
64x1 LINEAR IMAGE SENSOR
preliminary
62 63 64 1
2
3
4
...
CLK
Rev A0.2, Page 7/9
63
64 65 66
67
SI
V(AO)
Pix62 Pix63 Pix64
Pix1
Pix2
Pix3
SNH
SNH64
NRCI
...
Pix63
Pix64
Pix1
Integrationszeit
Figure 6: Clock pulse continued without giving a new integration start signal
Operation with the shutter function
Integration can be halted at any time via pin DIS, i.e.
the photodiodes are disconnected from their corre-
sponding 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 ...
63 64 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.