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AMIS-710411-A7: 400dpi CIS Module
Data Sheet
1.0 General Description
The AMIS-710411-A7 (PI411MC-A7) is a contact imaging sensor (CIS) module that can operate from a single 5.0V supply. It is a linear scanning array composed of 11 AMIS-720422 (PI3022) imaging sensor chips. The AMIS-720422 is a 400 dots per inch (dpi) solid-state line imaging sensor chip with 128 photo sensitive elements, which are also a product of AMIS. Eleven of these devices are sequentially cascaded to form the linear scanning array with a total of 1408 photo sensing elements. This imaging device is fabricated using MOS imaging sensor technology for its high-speed performance and high sensitivity. It is designed for scanning A7 size (89mm) documents with 400dpi resolution. Applications include ticket, check and card scanners, a variety of mark readers, and other automation equipment.
2.0 Key Features
* * * * * * * * * Low power-single power supply at 5.0V Light source, lens and sensor are integrated into a single module 15.7dpm resolution, 89mm scanning length High speed page scan - up to 282sec/line @ 5MHz pixel rate Wide dynamic range Analog output 660 LED light source Compact size 13mm x 25.6mm x 102mm Light weight
3.0 Functional Description
The AMIS-710411-A7 consists of 11 imaging array sensors, which are cascaded to provide 1408 photo-detectors. Each sensor has its associated multiplex switches and a digital shift register, which controls its sequential readout. Each sensor also contains a chip select switch so that each following chip is accessed sequentially as its predecessor chip completes its scan. Theses chips are mounted on a printed circuit board (PCB) along with clock buffers and a video signal amplifier (see Figure 1). The PCB containing the imaging array is enclosed in a module housing along with a one-to-one graded indexed micro lens array, which focuses the image of the scanned documents onto the sensing line of the sensor chips. The document is illuminated with an LED light source, which is also mounted in the housing (see Figure 2). The pictorial cross section (Figure 2) shows the LED bar light source and its Illumination path. The light on the document reflects images on the document. The reflected images focus through the micro lens onto the image sensing line of the chips where the images are converted to proportional electrical charges. An on board amplifier processes these signal charges into proportional video signal voltages, which are sent out to the output video port. All components are housed in a small plastic housing and covered with a glass window. This cover glass not only serves to protect all of the critical components within the housing from dust, but along with the micro lens, it determines the depth-of-focus because it lies in the optical path.
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AMIS-710411-A7: 400dpi CIS Module
Data Sheet
Figure 1: AMIS-710411-A7 Module Block Diagram
Figure 2: AMIS-710411-A7 Cross Sectional View
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AMIS-710411-A7: 400dpi CIS Module
4.0 Pin Out Description
Data Sheet
There is a connector located at the end of the module. The outline of the module in Figure 4 of the mechanical section illustrates the connector location. With the module window facing down on a flat surface, the viewer looking down on backside of the module and the connector's pins facing the viewer, the connector is located on the right-hand end of the module. The connector is a surface-mount-flex input, Molex 52207-0890, 1mm single 10-pin row. Its I/O designation is provided in Table 1. The location of Pin number 1 is found closest to end of the module.
Table 1: I/O Designation Pin Number 1 2 3 4 5 6 7 8 9 10 Symbol Vout Gnd Vdd (+5V) NA Gnd SP Gnd CP GLED VLED Names and Functions Analog video output Ground; 0V Positive power supply Not used Ground; 0V Shift register start pulse Ground; 0V Sampling clock pulse Ground for the light source Supply for the light source
5.0 Absolute Maximum Rating
Table 2 shows the absolute maximum parameters. These parameters should not be used in prolonged operation.
Table 2: Absolute Maximum Rating Parameter Power supply Symbols Vdd Idd VLED ILED Vih Vil Maximum Rating 7.0 5.7 50 300 Vdd -0.5 Units V mA V mA V V
Input clock pulse (high) Input clock pulse (low)
6.0 Operating Environment
Table 3: Operating Environment Parameter Operating temperature Operating humidity Storage temperature Storage humidity
Symbols Top Hop Tstg Hstg
Maximum Rating 0 to 50 10 to 85 -25 to 85 5 to 95
Units C % C %
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AMIS-710411-A7: 400dpi CIS Module
7.0 Electro-Optical Characteristics (25C)
Table 4: Electro-Optical Characteristics at 25 C Parameter Symbol Number of photo detectors Pixel-to-pixel spacing (1) Line scanning rate Tint (2) Clock frequency Fclk (3) Bright output voltage Video output (4) Bright output non-uniformity Up (5) Adjacent pixel non-uniformity Uadj (6) Dark non-uniformity Ud Dark output voltage Vd (7) Modulation transfer function MTF
Notes: (1) (2) (3) (4) (5) (6)
Data Sheet
Parameter 1408 62 423 3.33 1.2 +/-0.05 <+/-30 <25 <75 20040
Units Elements m sec MHz V % % mV mV %
Note
@ 3.33MHz clock frequency See Note 2 for 5.0MHz operation Specified for tint = 423sec
See Note 7 for MTF & DOF
(7)
(8)
Tint: line scanning rate or integration time. Tint is determined by the interval of two start pulses (SP). See Note 2 for the high scanning speed operation. Fclk: main clock frequency. The call out is at 3.3MHz but electrically the module reliably operates to 5.0MHz. This modification will require adjusting the LED light level and gain adjust. Vpavg = Vp(n)/1804 Up = [(Vpmax - Vp) / Vp] x 100% or [(Vp - Vpmin) / Vp] x 100% Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)] x 100% Upadj is the non-uniformity percentage pixel to pixel. Ud = Vdmax - Vdmin Vdmin is the minimum output on a black document. Vdmax is the maximum output voltage of a black document. MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%]. Depth of focus (DOF) range is defined with the MTF. MTF is the measure at the glass surface. Vmax: maximum output voltage at 100lp/inch (At 1/2 of the optical Nyquest frequency) Vmin: minimum output voltage at 100lp/inch lp / inch: line pair per inch
8.0 Recommended Operating Conditions (25C)
Table 5: Recommended Operating Conditions at 25 C Item Symbol Power supply Vdd VLED Idd ILED Input voltage at digital high Vih Input voltage at digital low Vil Clock frequency Fclk Clock pulse high duty cycle (1) Clock pulse high duration (2) Integration time Tint Operating temperature Top
Notes: (1)
Min. 4.5 4.5 28 130 Vdd-1.0 0 25 50 0.282
Mean 5.0 5.0 32 180 Vdd-.5 3.33
Max. 5.5 5.5 36 235 Vdd 0.6 5.0
25
5.0 50
Units V V ma ma V V MHz % ns ms C
(2)
The clock high duration is at a 5.0MHz maximum clock rate. Tint (minimum) is the minimum line integration time available at a 5.0MHz clock rate. See Note 2 under Table 4.
AMI Semiconductor - July 06, M-20593-001 www.amis.com
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AMIS-710411-A7: 400dpi CIS Module
9.0 Switching Characteristics (25C)
Data Sheet
Figure 3: Clock and Start Pulse Timing Diagram
The switching characteristics for the I/O clocks are shown in Figure 3. Its corresponding timing symbol definitions are given in Table 6.
Table 6: Symbol Definition for Figure 3 Item Clock cycle time Clock pulse width Clock duty cycle Prohibit crossing time of SP Data setup time Data hold time Signal fall delay time Signal sampling time
Symbol to tw tprh tds tdh tdl tsh
Min. 0.2 50 25 15 20 20 50 120
Typ.
Max. 4.0 75
Units s ns % ns ns ns ns ns
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AMIS-710411-A7: 400dpi CIS Module
10.0 AMIS-710411-A7 Module and its Mechanical Dimensions
Data Sheet
The sketch of this module is included to provide a pictorial of the module size and structure. A detailed drawing is available upon request.
Figure 4: AMIS-710411-A7 Module Mechanical Outline
AMI Semiconductor - July 06, M-20593-001 www.amis.com
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AMIS-710411-A7: 400dpi CIS Module
11.0 Company or Product Inquiries
Data Sheet
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 indemnification provisions appearing in its Terms of Sale only. AMIS makes no other warranty, express or implied, and disclaims the warranties of noninfringement, merchantability, or fitness for a particular purpose. AMI Semiconductor's products are intended for use in ordinary commercial applications. These products are not designed, authorized, or warranted to be suitable for 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 (c) 2006 AMI Semiconductor, Inc.
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