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AMIS-710250: 200dpi CIS Module
Data Sheet
1.0 General Description
The AMIS-710250 (PI250MC-A6) is a contact imaging sensor (CIS) module. It is a successor module to its predecessor, AMIS710223-A6 (PI223MC-A6) it possesses all superb qualities of its predecessor; except, it has one outstanding feature - it can operate from a single 5V supply. Like its predecessor, it is composed of 13 AMIS-720220 (PI3020) sensor chips. The AMIS-720220 is a 200 dots per inch (dpi) solid-state line imaging array, also a product of AMI Semiconductor. This imaging device is fabricated using MOS imaging sensor technology for its high-speed performance and high sensitivity. Like its predecessor, the AMIS-710250 is suitable for scanning A6 size (104mm) documents with 8 dots per millimeter (dpm) 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 8dpm resolution, 104mm scanning length High speed page scan - up to 167sec/line @ 5MHz pixel rate with internal optical modification (optional feature) Wide dynamic range Analog output Yellow-Green LED light source Compact size 14mm x 19mm x 120mm Light weight
3.0 Functional Description
The AMIS-710250 consists of 13 imaging array sensors that are cascaded to provide 832 photo-detectors. Each sensor has its associated multiplex switches and a digital shift register that 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. These chips are mounted on a printed circuit board (PCB) along with clock buffers and video signal amplifier. The only change from its predecessor module is in this amplifier. It as been slightly altered from its predecessor module to gain the single supply feature, see Figure 1.
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
Figure 1: AMIS-710250 Module Block Diagram
The PCB containing the imaging array is enclosed in a module housing, along with a one-to-one graded indexed micro lens array that focuses the scanned documents' image onto the sensing line of the sensor chips. The document is illuminated with a LED light source which is also mounted in the housing. See Figure 2.
Figure 2: AMIS-710250 Cross Sectional View
This pictorial cross section 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 chips' image sensing line where 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.
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
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 micro lens, it determines the depth-of-focus because it lies in the optical path.
4.0 Pin Out Description
There is one 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, with the viewer looking down on backside of the module and with the connector's pins facing viewer, the connector is located on the right-hand end of the module. The connector is a 1.25mm single 10-pin row. Its I/O designation is provided in Table 1. Pin number 1 location is indicated on the module outline.
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; 0V Supply for the light source
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
5.0 Absolute Maximum Rating
The following is a table of 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 50 5.7 600 Vdd -0.5 Units V mA V mA V V
Input clock pulse (high) Input clock pulse (low)
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 %
6.0 Electro-Optical Characteristics (25C)
Table 4: Electro-Optical Characteristics (25C) Parameter Number of photo detectors Pixel-to-pixel spacing Line scanning rate Clock frequency
(2)
Symbol
Tint
(1)
Parameter 832 125 420 2 1.0 <+/-30 <25 <50 20050
Units Elements m sec MHz V % % mV mV %
Note
Fclk
(3)
Bright output voltage
Video output
(4)
@ 2.0MHz clock frequency See Note 2 for 5.0MHz operation Specified for 420sec
Bright output non-uniformity (5) Adjacent pixel non-uniformity (6) Dark non-uniformity Dark output voltage (7) Modulation transfer function
Definition: 1. 2. 3. 4. 5. 6.
Up Uadj Ud Vd MTF
See Note 7 for MTF & DOF
7.
8.
Tint: line scanning rate or integration time. Tint is determined by the interval of two SP. See Note 2 for the high scanning speed operation. Fclk: main clock frequency. The call out is at 2.0MHz, but electrically module reliably operates to 5.0MHz. However, it must be optically modified to obtain the minimum integration time of 167sec. This modification is offered as a user's option. Vpavg = Vp(n)/832 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 nonuniformity percentage pixel to pixel. Ud = Vdmax - Vdmin Vdmin is the minimum output on a black document. Vdmax: maximum output voltage of black document MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%]. Depth of focus, DOF, range is defined with the MTF. MTF is measure at glass surface and at 0.4mm from the glass > 50 percent and peaks at approximately mid-point of 0.2mm. Vmax: maximum output voltage at 50lp/inch (At 1/2 of the optical Nyquest frequency) Vmin: minimum output voltage at 50lp/inch lp / inch: line pair per inch
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
Table 5: Recommended Operating Conditions (25C) Item Symbol Power supply Vdd VLED Idd ILED Input voltage at digital high Vih Input voltage at digital low Vil Clock frequency Fclk (1) Clock pulse high duty cycle (1) Clock pulse high duration (2) Integration time Tint Operating temperature Top
Notes: 1. 2.
Min. 4.5 4.5 22 200 Vdd-1.0 0 25 50 0.167
Mean 5.0 5.0 25 380 Vdd-0.5 2.0
Max. 5.5 5.5 30 450 Vdd 0.6 5.0
25
5.0 50
Units V V ma ma V V MHz % ns ms C
These duty cycle and high duration are for a 5.0MHz clock rate. Tint (min.) is the lowest line integration time available at a 5.0MHz clock rate with internal optical modifications. See Note 2 under Table 4.
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
7.0 Switching Characteristics (25oC)
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 the Above 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. 0.2 50 25 15 20 20 50 120
Typ.
Max. 4.0 75
Units s ns % ns ns ns ns ns
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
8.0 AMIS-710250 Module and its Mechanical Dimensions
The sketch of this module is to provide a pictorial of the module size and structure. A detailed drawing is available upon request.
Figure 4: AMIS-710250 Module Mechanical Outline
AMI Semiconductor - May 06, M-20547-001 www.amis.com
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AMIS-710250: 200dpi CIS Module
Data Sheet
9.0 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 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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