PI310MC-DR Datasheet, PDF (5/10 Pages) AMI SEMICONDUCTOR – 300DPI CIS Two Level Digital Output Module

Peripheral Imaging Corporation
• VN is on Pin 3. This is a (–10 to -5) Volts supply.
• VLED is on Pin 8. This is a +24 Volts supply for the LED light source.
Note: Power return for the LED light source is GLED on Pin 7 and the ground return for
the CIS modules is pin 5.
Video Output:
DIGOUT is on pin 1 of the I/O connector. This is the digital video output from the CIS
module. Reflection off the dark target produces a digital signal of “0” level, while the white
reflection off the white target produces a digital level of “one”. The amplitudes of the white
and dark are listed in the table below:
Electro-Optical Characteristics (25° C)
Table 2. Electro-optical characteristics at 25° C.
Parameter
Symbol
Parameter Units
Note
Number of photo detectors
1056
elements
Pixel to pixel spacing
84.7
mm
Line scanning rate
Tint ⁽¹⁾
528
µsec
@ 2.0 MHz
clock
frequency
Clock frequency
f
2.0
MHz
Bright output
Digital Video
>3.2
Volts
Dark output
Output Signal
<0.8
Volts
(1) The Tint is specified with a 2.0 MHz clock frequency. In operation the time
constants in the reference generator is set to match the initial exposure time,
hence the time constant will determine the optimum integration time. Note the
integration time is also a function of the clock frequency. Accordingly, it is highly
recommended that the parameters be factory adjusted for the specific
application.
Table 3. Recommended Operating Conditions (25 °C)
Item
Power Supply
Input voltage at digital high
Input voltage at digital low
Clock frequency
Clock pulse high duty cycle
Symbol
Vdd
Vn.
VLED
Idd
Ivn
ILED
Vih
Vil
f
Min
-10
Vdd-1.0
0
Mean
5.0
24 ⁽¹⁾
25
10
85
Vdd-.5
25
Max
-5
Vdd
0.8
2.5
Units
V
V
V
mA
mA
mA
V
V
MHz
%
PAGE 5 of 10 PI310MC-Dr Description, 7/30/99