AMIS-710324-A4: 300dpi CIS Module
Data Sheet
1.0 General Description
The AMIS-710324-A4 (PI324MC-A4) is a contact image sensor (CIS) module. It is a dual-analog-output contact image sensor, using
MOS image sensor technology for high-speed performance and high sensitivity. The AMIS-710324-A4 is suitable for scanning A4 size
(216mm) documents with 11.8 dots per millimeter (dpm) resolution. Applications include fax machines, game systems, a variety of mark
readers and other automation equipment requiring document scanners.
2.0 Key Features
•
•
•
•
•
•
•
•
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Light source, lens and sensor are integrated into a single module
11.8dpm resolution, 216mm total scanning length (2592 pixels long)
Two independent analog outputs (split into two sections of 1248 pixels and 1344 pixels)
Up to 270µsec/line scanning speed with red light source
Wide dynamic range
Red LED light source
Compact size ≅ 14mm x 19mm x 232mm
Low power
Light weight
3.0 Functional Description
The AMIS-710324-A4 imaging array consists of 27 sensors, AMIS-720321 (PI3021), produced by AMI Semiconductor. The sensor is a
monolithic chip with an array of 96 photo sensing elements, of which 27 are cascaded to provide 2592 photo-detectors. Additionally,
these chips give the users the readout flexibility in selecting their desired data format. These cascaded chips are segregated into two
electrically independent sections of 13 chips and 14 chips, but they are still contiguously aligned in a single row, see Figure 1 (the
module's block diagram). This configuration lends itself to a positional stream of video pixels, whether they are read in parallel or
sequentially from the two output ports.
Each chip contains a set of multiplex switches, and a digital shift register to control the chips sequential readout. Additionally, the chips
contain a chip selection switch that is interrogated in a sequence as each predecessor chip completes its scanning process. Since this
module has two output ports from two independently controlled sections of chips, the users are required to enter a set of control clocks
and power into each section through the two provided connectors located on each end of the module.
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
Figure 1: AMIS-710324-A4 Module Block Diagram (See Table 1 for Pin Out Designation)
Figure 2 depicts a cross sectional pictorial of the module. Mounted in the module is a one-to-one graded indexed micro lens array that
focuses the scanned documents' image onto the chip's sensing line. The sensing line is located along the module's sensor axis, known
as the read line. These photon images are transformed into proportional video charges and processed by two on-board amplifiers. The
video signal from the amplifier transmits a sequential stream of video pixels to the video output pin of the AMIS-710324-A4 module.
Also mounted in the housing is a LED light source. Figure 2 shows the LED bar and its illumination path. The path traces the ray from
the LED and is reflected from the document and focused through the ROD lens and onto the sensors. All these components are housed
in a small plastic housing with a cover glass. The cover glass serves as a window with the outside surface as the focal point for the
image on the document. It also serves to protect the imaging array, the micro lens assembly and the LED light source from dust.
Figure 2: AMIS-710324-A4 Cross Section
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
4.0 I/O Designation
There are two connectors located at the ends of the modules. The outline of the module in Figure 5 of the mechanical section illustrates
these connector locations. With the module window facing down on a flat surface and with the viewer looking down on the backside of
the module, the connectors are located on each end of the module with their pins pointing toward the viewer. The connectors for
Section 1 have 12 pins and are located on the right-hand side. The part number is JAE IL-Z-12P-S125L3-E. Its pin numbers and
designations are listed in Table 1.
Table 1: Pin Configuration for Section 1 Connector
Pin Number
Symbol
1
Vout1
2
Gnd
3
Vdd (+5V)
4
Vn (-5V )
5
Gnd
6
SP1
7
Gnd
8
CP
9
GLED
10
VLED
11
LED (future)
12
LED (future)
Names and Functions
Analog video output
Ground; 0V
Positive power supply
Negative power supply
Ground; 0V
Shift register SP
Ground; 0V
Sampling clock pulse
Ground for the light source; 0V
Supply for the light source
Supply for future LED source
Supply for future LED source
The connector for Section 2 has eight pins and is located on the left-hand side. The part number is JAE IL-Z-8P-S125L3-E. The pin
numbers and designations for the connector are listed in Table 2.
Table 2: Pin Configuration for Section 2 Connector
Pin Number
Symbol
1
Vout2
2
Gnd
3
Vdd (+5V)
4
Vn (-5V)
5
Gnd
6
SP2
7
Gnd
8
CP
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Names and Functions
Analog video output
Ground; 0V
Positive power supply
Negative power supply
Ground; 0V
Shift register SP
Ground; 0V
Sampling clock pulse
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
5.0 Absolute Maximum Rating
Table 3: Absolute Maximum Rating
Parameter
Power supply voltage
Symbols
Vdd
Idd
Vn
In
VLED
ILED
Vih
Vil
Input clock pulse (high level)
Input clock pulse (low level)
Maximum Rating
7
70
-15
20
6.0
0.65
Vdd +.5
-0.5
Units
V
mA
V
mA
V
A
V
V
Maximum Rating
0 to 50
10 to 85
-25 to +75
5 to 95
Units
°
C
%
°
C
%
Note: These are the absolute maximums and are not to be used in prolonged operation.
6.0 Operating Environment
Table 4: Operating Environment
Parameter
Operating temperature
Operating humidity
Storage temperature
Storage humidity
Symbols
Top
Hop
Tstg
Hstg
7.0 Electro-Optical Characteristics at 25°C
°
Table: Electro-Optical Characteristics at 25 C
Parameter
Total number of photo detectors
Number of detectors in Section 1
Number of detectors in Section 2
Pixel-to-pixel spacing
Line scanning rate
(2)
Clock frequency
(3)
Bright output voltage
(4)
Bright output non-uniformity
(5)
Adjacent pixel non-uniformity
(6)
Dark non-uniformity
Dark output voltage
(6)
Typical modulation transfer function
Notes:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(7)
Symbol
Tint
f
Vpavg
Up
Uadj
Ud
Parameter
2592
1248
1344
84.7
270
5.0
1.0
<+/-30
<25
<100
Units
Elements
Elements
Elements
µm
µsec
MHz
V
%
%
mV
@ 5.0MHz clock frequency
Vd
<150
mV
Average dark level from the
video reset level
MTF
50
%
(1)
Note
The sum of both sections
Tint: Line scanning rate or integration time. Tint is determined by the interval of two start pulses. The line scan time is determined by the longest array with both
Section 1 and 2 operating in parallel. The longest array is Section 2, with 1344 pixels, running at a 5MHz pixel rate.
f: main clock frequency
Vpavg = ∑ Vp(n)/1248 for section 1 and Vpavg = ∑ Vp(n)/1344 for Section 2, where: Vp(n) is the peak value of any nth pixel in a give scan.
This level is factory adjusted with an internal potentiometer after setting the scan times to the minimum allowable for a fixed clock frequency. In this case, ≈
275µsec at 5MHz clock frequency. This value is then used as a reference to adjust the dark level and to call out the dark uniformity (see Note 6 on dark
uniformity).
Up is defined as follows: Upmax = [(Vpmax - Vpavg) / Vpavg] x 100% or Upmin = [(Vpavg - Vpmin) / Vpavg] x 100%
where: Vpmax=the maximum value of the peak nth video pixel, Vp(n),
and: Vpmin = the minimum value of the peak video nth video pixel, Vp(n).
Up = +/-30% is selected from the greater absolute value of Upmax of Upmin. If |Upmax| > |Upmin| then Up = +|Upmax| is selected, if |Upmin| > |Upmax| then Up =
-|Upmin| is selected. In either case, |Upmax| + |Upmin| ≤ 60%.
Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)] x 100%
Upadj is the non-uniformity percentage pixel to pixel
See Section 8.0 for discussion on dark uniformity, Ud.
See Section 9.0 on MTF Discussion and Graph.
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
8.0 Dark Uniformity, Ud
Figure 3 exemplifies the definitions of the terminology, which are used to explain the video signal characteristics. Dark uniformity is
defined as Ud = Vdmax - Vdmin; where Vdmax and Vdmin are the maximum and minimum voltage of Vd, the average dark level of total
pixels in the scan line when the LED light is turned off. Vd is measured from the reset level and the amplitude between the dark level
and this reset level is called pedestal. The pedestal level is caused by the resetting operation of the pixel. Although the pedestal
remains constant for a constant clock frequency, the reset level will vary from ground because the dark level, Vd, is factory adjusted to
ground (0V).
Figure 3: Definition of the Video Pixel in the Light and in the Dark
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
9.0 MTF Graph and its Discussion
Figure 4 depicts MTF versus Distance. This graph essentially shows the working depth of focus. Since this module is a 300dpi module,
with a pixel density of 300 pixels per inch, the MTF was measured with a 150dpi or a 75 line-pair per inch optical bar pattern. The tests
were conducted at a pixel rate of 2.5MHz.
TYPICAL MTF VERSUS DEPTH OF FOCUS
60
MTF in %
50
40
30
20
10
0
0
0.1
0.2
0.3
0.4
0.5
DEPTH FROM THE WINDOW SURFACE(mm)
Figure 4: MTF versus Distance
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, .....2592 , Vp(n) is the signal amplitude of the n pixel.
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
10.0 Recommended Operating Conditions (25°C)
°
Table 5: Recommended Operating Conditions (25 C)
Item
Symbol
Power supply
Vdd
Vn.
VLED
Idd (1&2)
Ivn (1&2)
ILED
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
-4.5
Vdd-1.0
0
Mean
5.0
-5
5.0
35
6.0
460
Vdd-.5
25
50
0.270
25
Max.
5.5
-12
5.5
55
10.0
600
Vdd
0.8
5.5
5.0
50
Units
V
V
V
ma
ma
ma
V
V
MHz
%
ns
ms
°
C
11.0 Switching Characteristics (25°C)
The timing diagram for both arrays Section 1 and Section 2, are shown in Figure 5.
Figure 5: Timing Diagram for both Section 1 and Section 2
The switching characteristics for the I/O clocks are labeled symbolic acronyms for each corresponding clock's switching edges. The
corresponding times for these symbols are given in Table 6.
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AMIS-710324-A4: 300dpi CIS Module
Table 6: Symbol Definitions for the Timing Diagram
Item
Symbol
Clock cycle time
to
Clock pulse width
tw
Clock duty cycle
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
15
20
20
50
120
Typ.
Data Sheet
Max.
4.0
75
Units
µs
ns
%
ns
ns
ns
ns
ns
12.0 AMIS-710324-A4 Module and its Mechanical Dimensions
Figure 6 is an overview drawing of the module. If a detailed drawing is desired, especially for a design in application, a full size drawing
is available upon request.
Figure 6: Mechanical Overview of the Module
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AMIS-710324-A4: 300dpi CIS Module
Data Sheet
13.0 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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use in life-support systems or other critical applications where malfunction may cause personal injury. Inclusion of AMIS products in such applications is understood to be fully at the
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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