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Contact Image Sensor
(CIS) Module
Product Name
M106-A4-G1
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
Oct 7, 2008
Revision no.
V1.0
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
V1.0
10/7/08
Correct dimension to
15mm x18mmx 232mm
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-A4-G1
8 dpm Compact Image Sensor
(CIS) module
Features:
1728 x 1 image sensing elements
8 dots per millimeter (dpm) resolution
216 mm scanning length
15 mm x 18 mm x 232 mm compact size
5 ms/line scanning speed
Yellow green LED light source
high MTF
light weight
low power consumption
one analog output signal
high integration for light source, lens and sensor
10 pin connector for input and output
Description:
The M106-A4-G1 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 1728
pixels of the photo-detector array. Input and
output electronic contact is via a seven - pin
connector. The cross sectional view of the
M106-A4-G1 is shown in figure 1. Figure 2, Plastic
on the following page, is a block diagram of housing
the module.
LED light
source
cover glass
Selfoc
lens
array
The module is suitable to scan an A4 size (216
mm) document. Applications include fax
machine, document scanner, mark reader,
and other office automation equipment.
PCB
connector
Photo detector array
Figure 1. Cross section view of M106-A4-G1.
20045 Stevens Creek Blvd., Suite 1A, Cupertino, CA., 95014
Tel: (408) 366-2898, Fax: (408) 366-2698

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Functional block diagram:
1
VLED
2
GLED
LED light source
Selfoc rod lens array
1 2 3 4 Photo-detector array 1725 1726 1727 1728
Shift register & multiplexing switch
Buffer
analog switch & OP amplifier
34
φCP Gnd
5
φSP
67
Gnd Gnd
89
VDD Gnd
Figure 2 Functional block diagram of M106-A4-G1.
10
Vout
Pin Description:
Pin #
1
2
3
4
5
6
7
8
9
10
Symbol
VLED
GLED
φCP
Gnd
φSP
Gnd
Gnd
VDD
Gnd
Vout
Description
LED power supply voltage; 5V
LED power supply ground; 0 V
Main clock pulse
Power supply ground; 0 V
Start pulse
Power supply ground; 0 V
Power supply ground; 0 V
Power supply voltage; 5 V
Power supply ground; 0 V
Analog video output signal
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 = 500 kHz, VDD = 5 V, VLED = 5 V, Tint *(1) = 5 ms, λ*(2) = 570 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 1.8 2.0 2.2
Up*(5) White paper non-uniformity
O.D. = 0.05 ~ 0.1
-30
30
Upadj*(6) 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 -200
+200
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
%
%
mV
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