AMIS-710409-A4: 400dpi CIS Module
Data Sheet
1.0 General Description
The AMIS-710409-A4 (PI409MC-A4) is a contact image sensor (CIS) module. It is a long CIS module that uses MOS image sensor
technology for high-speed performance and high sensitivity. Its four parallel video outputs give the AMIS710409-A6 its high speed
performance. The AMIS-710409-A4 is suitable for scanning A4 size (216mm) documents with 15.8 dots per millimeter (dpi) resolution.
Applications include document scanning, mark readers, gaming and office automation equipment.
2.0 Key Features
•
•
•
•
•
•
•
•
•
•
Light source, lens and sensor are integrated into a single module
Ultra high speed
Four parallel analog video outputs clocked at 5.0MHz
180usec/line scanning speed @ 5.0MHz clock speed
15.8dpm resolution, 216mm scanning length
Wide dynamic range
Red light source 660nm
Standard A4 size ≅ 14mm x 19mm x 232mm
Low power
Light weight
3.0 Functional Description
The AMIS-710409-A4 imaging module consists of 27 AMIS-720442 (PI3042) imaging chips, produced by AMIS. The sensor chips are
monolithic devices with 128 photo sensing elements. Twenty seven of these imaging chips are cascaded to provide a 3456 photoelements module. The AMIS-720442 chips are integrated with the associated multiplex switches of the photo sensors, a digital shift
register and a chip selection switch. The shift register sequentially clocks out the integrated image charges from each of the sensing
elements and passes them through the chip-select switch and out onto the video line. The chip-select switches are sequentially
switched as each predecessor chip completes its scan. These 27 sensors, bonded on a PCB, are grouped into four sub-cascaded
sections. Each contiguously cascaded chip section is connected on separate video lines, therefore providing four video outputs,
VOUT1, VOUT2, VOUT3, and VOUT4. Before the signal charges from the four video lines appear at their respective outputs, they are
converted to signal voltages by four on-board buffer amplifiers; one for each of its corresponding video section. The first three sections,
VOUT1, VOUT2 and VOUT3 have seven sensor chips, while the VOUT4 has six sensor chips. Since each sensor chip has 128 pixels,
there are a total of 3456 pixels (see Figure 1).
Mounted in the module housing along with the PCB, is a one-to-one graded indexed micro lens array, which focuses image of the
scanned documents onto the sensing line of the sensor chips. The third major component mounted in the module is the LED light
source (see Figure 2). The pictorial cross section shows the LED bar light source and its Illumination path as it reflects the image from
the document and focuses through the ROD lens onto the image sensing line of the sensing chips. All components are housed in a
small plastic housing, which has a cover glass. This cover glass also serves as the window. It is the focal point for the object being
scanned and protects all of the critical components within the housing from dust. I/O to the module is a 12-pin connector located on one
end of the module (see Figure 5).
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AMIS-710409-A4: 400dpi CIS Module
Figure 1: AMIS-710409-A4 Module Block Diagram (See Table 1 for Pin Out Designation)
Figure 2: AMIS-710409-A4 Cross Section
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Data Sheet
AMIS-710409-A4: 400dpi CIS Module
Data Sheet
4.0 I/O Designation
Table 1 lists the pin numbers and their designations for the I/O connector. It is a JAE IL-Z-12P-S125L3-E connector.
Table 1: Pin Configuration
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
VOUT1
VOUT2
GND
VOUT3
VOUT4
Vdd
SP (START)
GND
CP (CLOCK)
Vn
GLED
VLED
Names and Functions
Analog video output 1
Analog video output 2
Ground; 0V
Analog video output 3
Analog video output 4
Positive power supply
Shift register start pulse
Ground; 0V
Sampling clock pulse
Negative power supply
Ground for the light source; 0V
Supply for the light source
5.0 Absolute Maximum Rating
Table 2: Absolute Maximum Rating
Parameter
Power supply voltage
Input clock pulse (high level)
Input clock pulse (low level)
Symbols
Vdd
Idd
Vn
In
VLED
ILED
Vih
Vil
Maximum Rating
7
100
-15
35
6
600
Vdd – 0.5V
-0.5
Units
V
ma
V
ma
V
ma
V
V
Note: These parameters are absolute maximums. Do not operate under these conditions.
6.0 Environmental Specifications
Table 3: Operating and Storage Environment
Parameters
Symbols
(1)
Operating temperature
Top
(1)
Operating humidity
Hop
(1)
Storage temperature
Tstg
(1)
Storage humidity
Hstg
Maximum Rating
0 to 50
10 to 90
-20 to +75
10 to 90
Note:
(1)
These are standard specifications for the CIS modules.
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Units
°
C
%
°
C
%
AMIS-710409-A4: 400dpi CIS Module
Data Sheet
7.0 Electro-Optical Characteristics (25°C)
°
Table 4: Electro-Optical Characteristics at 25 C
Parameter
Total number of photo detectors
Section 1, 2 & 3 number of photo detectors
Section 4 number of detectors
Pixel-to-pixel spacing
Line scanning rate
(2)
Clock frequency
(3)
Bright output voltage
(4)
Bright output non-uniformity
(5)
Dark non-uniformity
(6)
Dark output voltage
(7)
Modulation transfer function
Notes:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Symbol
Parameter
3456
896
768
63.5
180
5.0
500
+/-30
<140
<600
>50
(1)
Tint
f
Video output
Up
Ud
Dark level (DL)
MTF
Units
Elements
Elements
Elements
µm
µsec
MHz
mVolt
%
mV
mV
%
Note
@ 5.0MHz clock frequency
Tint: line scanning rate or integration time. Tint is determined by the interval between two start pulses (SP).
f: main clock frequency also equals the video sampling frequency.
Video output level is controlled with an adjustment as well as the integration time
Up = {[Vp(max) –Vp(min)]/Vp(max)}x100%
Where Vp(max) = maximum peak pixel and Vp(min) = minimum pixel.
Ud = Vdmax – Vdmin
Vdmin is the minimum output voltage with LED off.
Vdmax is maximum output voltage with LED on.
This level is measured from the reset level, which is located between the pixels, during the pixel reset duration. The reset level is at or near ground, 0V. Note that
the gain is adjustable on each output. However, it is recommended that the gain should not be increased above the level where the reset ground level starts to
increase above zero.
A graph of a typical MTF is shown in Figure 3.
8.0 MTF Graph and its Discussion
TYPICAL MTF VS DEPTH OF FOCUS
70
MTF IN %
60
50
40
30
20
10
0
0
0.1
0.2
0.3
0.4
0.5
DEPTH FROM THE WINDOW SURFACE(mm)
Figure 3: MTF versus Distance
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0.6
AMIS-710409-A4: 400dpi CIS Module
Data Sheet
The graph in figure 3 depicts the working depth of focus. Since this module is a 400dpi module, a pixel density of 400 pixels per inch,
the MTF was measured with a 200dpi or a 100 line-pair per inch optical bar pattern. The test was conducted with the pixel rate set to
2.5MHz (see Figure 3).
The effective algorithm used in the measurements is as described by the following equation:
MTF={[Vp(n)+Vp(n+1)]/2-[Vp(n+2)+Vp(n+3)]/2}/{[Vp(n)+Vp(n+1)]/2+[Vp(n+2)+Vp(n+3)]/2}
th
th
Where n is 1, 2, .....3456 , Vp(n) is the signal amplitude of the n pixel.
9.0 Recommended Operating Conditions (25°C)
°
Table 5: Recommended Operating Conditions (25 C)
Item
Symbol
Power supply
Vdd
Vn.
Idd
In
ILED
VLED
Input voltage at digital high
Vih
Input voltage at digital low
Vil
Clock frequency
f
Clock pulse high duty cycle
Clock pulse high duration
Integration time
Tint
(1)
Operating temperature
Top
Min.
4.5
-13
Vdd-1.0
0
0.
Note:
(1)
See the note under Table 3.
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Typ.
5.0
-5
87
25
450
5
Vdd-.5
5.0
25
50
180
25
Max.
5.5
-4.0
95
30
550
5.5
Vdd
0.6
6.0
50
Units
V
V
ma
ma
ma
V
V
V
MHz
%
ns
µs
°
C
AMIS-710409-A4: 400dpi CIS Module
Data Sheet
10.0 Switching Characteristics (25°C)
Figure 4: Module Timing Diagram
The switching characteristics (at 25°C) for the I/O clocks are shown in Figure 4. For the timing symbol definitions, see Table 6.
Note: Only one video output is shown because all four videos have identical electrical characteristics. The only physical difference
between them is in Section 4 output, VOUT4. Section 4 has only six sensor chips, hence its active scan is shorter by 128 pixels.
Table 6: Timing Symbol’s Definition and Timing Values
Item
Symbol
Clock cycle time
to
Clock pulse width
tw
Clock duty cycle
(1)
Prohibit crossing time of SP
tprh
Data setup time
tds
Data hold time
tdh
Signal delay time
tdl
Signal settling time
tsh
Min.
0.20
50
25
0
20
0
20
100
Typ.
Max.
4.0
75
Units
µs
ns
%
ns
ns
ns
ns
ns
Note:
(1)
"Prohibit crossing of start pulse" is to indicate that the start pulse should not be active high between any two consecutive high going clock pulses or two
consecutive low going clock pulses (see Figure 4). Only one high going clock under the active high start pulse initiates the internal shift register and it must not be
active over two high going clocks. All low going clock pulses will not initiate the shift register. To ensure that the start pulse will not be actively high during two
consecutive high going clocks, the circuit should be designed to keep the start pulse active only for one high going clock cycle.
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AMIS-710409-A4: 400dpi CIS Module
Data Sheet
11.0 Mechanical Structure of the Module
The isometric sketch of the housing is shown to demonstrate the connector location, the approximate overall dimensions and the
general geometric layout of the module (see Figure 5). It is not intended for use as a design reference. A detailed drawing of the AMIS710409-A4 module housing is available upon request.
Figure 5: AMIS-710409-A4 Module Housing Sketch
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AMIS-710409-A4: 400dpi CIS Module
Data Sheet
12.0 Company or Product Inquiries
For more information about AMI Semiconductor, our technology and our product, visit our Web site at: http://www.amis.com
North America
Tel: +1.208.233.4690
Fax: +1.208.234.6795
Europe
Tel: +32 (0) 55.33.22.11
Fax: +32 (0) 55.31.81.12
Production Technical Data - The information contained in this document applies to a product in production. AMI Semiconductor and its subsidiaries (“AMIS”) have made every effort to ensure
that the information is accurate and reliable. However, the characteristics and specifications of the product are subject to change without notice and the information is provided “AS IS” without
warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify that data being relied on is the most current and complete. AMIS
reserves the right to discontinue production and change specifications and prices at any time and without notice. Products sold by AMIS are covered by the warranty and patent
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customer’s risk. Applications requiring extended temperature range, operation in unusual environmental conditions, or high reliability, such as military or medical life-support, are specifically
not recommended without additional processing by AMIS for such applications. Copyright © 2006 AMI Semiconductor, Inc.
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