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Preliminary
Contact Image Sensor
(CIS) Module
Product Name
M106-A8R1
Approval
Notes
CMOS Sensor Inc.
20045 Stevens Creek Blvd.,
Suite 1A
Cupertino, CA., 95014
Tel: (408) 366-2898
Fax: (408) 366-2698
Approved Checked Designed
Issued
Nov 11, 2002
Revision no.
All specifications of this device are subject to change without notice.
20045 Stevens Creek Blvd., Suite 1A, Cupertino, CA., 95014
Tel: (408) 366-2898, Fax: (408) 366-2698

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Revision control sheet
Revision No. Date
Item of change and content
Reason Approved Designed
20045 Stevens Creek Blvd., Suite 1A, Cupertino, CA., 95014
Tel: (408) 366-2898, Fax: (408) 366-2698

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CMOS Sensor Inc.
M106-A8R1
(TR218 -085A)
8 dpm Compact Image Sensor
(CIS) module
Features:
448 x 1 image sensing elements
8 dots per millimeter (dpm) resolution
56 mm scanning length
12.5 mm x 15 mm x 70 mm compact size
1 ms/line scanning speed
Red LED light source
high MTF
light weight
5V single power supply
low power consumption
one analog output signal
high integration for light source, lens and sensor
8 pin connector for input and output
Description:
The M106-A8 compact image sensor module
is a contact type image sensing module that is
composed of a line of LED’s as a light source,
a long Selfoc rod lens array, and 448 pixels of
photo-detector array. Input and output
electronic contact is via a 8-pin connector.
The cross sectional view of the M106-A8 is
shown in figure 1. Figure 2, on the following
page, is a block diagram of the module.
Plastic
housing
LED light
source
The module is suitable to scan an A8 size (56
mm) document. Applications include business
card reader, position sensor, mark reader,
and other office automation equipment.
connector
Photo detector array
cover glass
Selfoc
lens
array
PCB
Figure 1. Cross section view of M106-A8.
20045 Stevens Creek Blvd., Suite 1A, Cupertino, CA., 95014
Tel: (408) 366-2898, Fax: (408) 366-2698

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Functional block diagram:
8
VLED
7
GLED
LED light source
Selfoc rod lens array
1 2 3 4 Photo-detector array 445 446 447 448
Shift register & multiple xing switch
Buffer
analog switch & OP amplifier
46
φSP φCP
3 25
VDD Gnd Gnd
Figure 2 Functional block diagram of M106-A8.
Pin Description:
1
Vout
Pin #
1
2
3
4
5
6
7
8
Symbol
Vout
Gnd
VDD
φSP
Gnd
φCP
GLED
VLED
Description
Analog video output signal
Analog video output ground; 0 V
Positive power supply voltage; 5 V
Start pulse
Clock pulse ground; 0 V
Main clock pulse
LED power supply ground; 0 V
LED power supply voltage; 5 V
20045 Stevens Creek Blvd., Suite 1A, Cupertino, CA., 95014
Tel: (408) 366-2898, Fax: (408) 366-2698

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Electro-optical characteristics:
at f = 1 MHz, VDD = 5 V, Tint *(1) = 1 ms, λ*(2) = 660 nm, Ta*(3) = 25 °C
(unless otherwise noted)
symbol
Parameter
test conditions min. typ max
Vp*(4) Analog output voltage at white paper O.D. *(11) = 0.05 ~ 0.1 1.2 1.6 2.0
Up*(5) White paper non-uniformity
O.D. = 0.05 ~ 0.1
-30
30
U *(6)
padj
Adjacent pixel non-uniformity
O.D. = 0.05 ~ 0.1
-25
25
Vd*(7) Analog output voltage at dark paper light off, O.D. = 0.8
0.5
Ud*(8) Dark signal non-uniformity
light off, O.D. = 0.8
200
MTF*(9) Modulation transfer function
at 3.85 lp/mm*(12)
30
γ*(10)
Linearity
0.85 1.1
unit
V
%
%
V
mV
%
Definition:
1. Tint is an integration time. It is determined by the interval between two start pulses.
2. λ is a wavelength of the light source.
3. Ta is ambient temperature.
4. Vp = (Vpmax + Vpmin) / 2
where Vpmax is a maximum voltage of whole module on white document.
Vpmin is a minimum voltage of whole module on white document.
5. Up is a pixel - pixel photo response non- uniformity within whole module.
Up = [(Vpmax - Vpmin) / Vp] x 100%
6. Upadj = Max [|(Vp(i) - Vp(i+1)| / Vp(i)] x 100%
where Vp(i) is the video signal output of each pixel # i
Vp(i+1) is the video signal output of each pixel # (i+1)
7. Vd = (Vdmax + Vdmin) / 2
where Vdmax is a maximum dark signal on whole module.
Vdmin is a minimum dark voltage on whole module.
8. Ud = Vdmax - Vdmin
9. MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100%
where Vmax is the maximum output voltage at 3.85 lp/mm document.
Vmin is the minimum output voltage at 3.85 lp/mm document.
10. γ = log[(V2-Vd) / (V1-Vd)] / log (E2/E1) or log [(V2 - Vd) / (V1 - Vd)] / log (T2/T1)
where V1 is the output voltage of E1 illumination or T1 integration time
V2 is the output voltage of E2 illumination or T2 integration time
at 10 ~ 90% of saturation conduction.
11. O.D. = optical density of the paper.
12. lp / mm = line pair per millimeter
20045 Stevens Creek Blvd., Suite 1A, Cupertino, CA., 95014
Tel: (408) 366-2898, Fax: (408) 366-2698