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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
1.0 General Description
The AMIS-710227 (PI227MC-A4), AMIS-710228 (PI228MC-A4) and AMIS-710229 (PI229MC-A4) are a family of contact image sensor (CIS) modules. As a family group they are called AMIS-710227/228/229 modules. They are long-contact image sensor modules using MOS image sensor technology for high-speed performance and high sensitivity. They contain their own complete optical system including the light source; accordingly, they make a very compact imaging system. The four parallel video outputs give this family of CIS modules their high-speed performance. They all possess identical electrical circuit components, as well as the mechanical and optical components, except for their LED light sources. Accordingly, they differ in their specification because the different light sources limits the effective high-speed performance. The three modules are suitable for scanning A4 size (216mm) documents with 8 dots per millimeter (dpm) 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 90sec/line scanning speed @ 5.0MHz clock rate with optional light sources, selected from the option of three above modules 8dpm resolution, 216mm scanning length Wide dynamic range LED light source (selectable among the three above modules) Standard A4 size 14mm x 19mm x 232mm Low power Light weight
3.0 Functional Description
Each of the three modules in the family, AMIS-710227/228/229, consists of four major components. The first of them is the printed circuit board (PCB) on which the 27 imaging chips, AMIS-720220 (PI3020), are bonded. These sensor chips, produced by AMI Semiconductor, are monolithic devices with 64 photo-sensing elements. Each of 27 chips are complete self-contained scanning chips and have their control circuits integrated in the chips, so that they can be cascaded to provide 1728 photo-element modules. The AMIS720220 chips are integrated with the photo sensors' associated multiplex switches, a digital shift register and chip selection switch. The chip's shift register sequentially clocks out the integrated image charges from each sensing element and passes them through the chipselect switch and out onto the video line. The chip-select switches are sequentially switched as each of the predecessor chips completes its scan. These 27 sensors, bonded on a PCB, are grouped into four sub-cascaded sections. Each contiguously cascaded chips section is connected on separate video lines, resulting in four video outputs VOUT1, VOUT2, VOUT3, and VOUT4. Before the signal, charges from the four video lines appear at their respective outputs where 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 64 pixels, there are a total of 1728 pixels. See Figure 1.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
Figure 1: AMIS-710227/228/229 Module Block Diagram (See Table 4-A for Pin Out Designation)
Mounted in the module housing along with the PCB is the second major component. It is a one-to-one graded indexed micro lens array that focuses the scanned documents' image onto the sensing line of the sensor chips. The third major component, mounted in the module, is the LED light source. See Figure 2. This 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 on to its image sensing line of the sensing chips. All components are housed in a small plastic housing and covered with the fourth major component, a glass window. This cover glass not only serves to protect all of the critical components within the housing from dust, but also serves a minor role in the optical system. Together with rest of the module's optical system, the module is adjusted to obtain the optimum depth-of-focus. See Section 10: MTF Graph and its Discussion.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
Figure 2: AMIS--710227/228/229's Cross Section
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
4.0 I/O Designation
I/O to the module is a 12-pin connector located on one end of the module. See Figure 6. Table 4-A lists the pin numbers and their designations for the I/O connector. It is JAE IL-Z-12P-S125L3-E connector.
Table 4-A: 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
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
5.0 Module vs LED Light Source
Table 5-A lists the LED light source associated with each module model
Table 5-A: Module vs. LED Light Source Module AMIS-710227 AMIS-710228 AMIS-710229 LED Light Source 660nm Red LED bar High power Yellow-Green LED bar Low power Yellow-Green LED bar
6.0 Absolute Maximum Rating
Table 6-A shows the absolute maximum ratings. The parameters are common to all three modules. Table 6-B shows the absolute maximum ratings that are different among the three modules.
Table 6-A: Electrical Absolute Maximum Rating Parameter Symbols Power supply Vdd Idd Vn In Input clock pulse (high level) Vih Input clock pulse (low level) Vil
Maximum Rating 7 100 -15 35 Vdd - 0.5 -0.5
Units V ma V ma V V
Note: These parameters are absolute maximums; do not operate under these conditions.
Table 6-B: LED Power Absolute Maximum Rating Parameter Symbols Power supply: LED light Module AMIS-710227 source VLED 6.0 ILED 0.7
Maximum Rating AMIS-710228 6.0 1.0
Units AMIS-710229 6.0 1.0 V amp
Note: These parameters are absolute maximums; do not operate under these conditions.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
7.0 Environmental Specifications
Table 7-A: Operating and Storage Environment Parameter Symbols (1) Operating temperature Top (1) Operating humidity Hop (1) Storage temperature Tstg (1) Storage humidity Hstg
Note: 1. These are standard specifications for the CIS modules.
Maximum Rating 0 to 50 10 to 90 -20 to +75 10 to 90
Units C % C %
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
8.0 Electro-Optical Characteristics (25C)
Table 8-A is the electro-optical characteristics common all three modules. Table 8-B, Table 8-C and Table 8-D show the different characteristics for each of the three LED light sources.
Table 8-A: Common Electro-Optical Characteristics Parameter Symbol Total number of photo detectors Section 1, 2 & 3 number of photo detectors Section 4 number of detectors Pixel-to-pixel spacing
Value 1728 448 384 125
Units Elements Elements Elements m
Notes
Table 8-B: AMIS-710227 Electro-Optical Characteristics AMIS-710227 660 RED LED Parameter Symbol (1) Line scanning rate Tint Clock frequency (3) Bright output voltage (4) Bright output non-uniformity (5) Dark non-uniformity (6) Dark output voltage Modulation transfer function
See notes below Table 8-D
(7) (2)
Value 90 5.0 1.0 <+/-30 <40 <200 >40
Units sec MHz Volt % mV mV %
Note @ 5.0MHz clock frequency
Fclk Video output Up Ud Dark level (DL) MTF
Table 8-C: AMIS-710228 Electro-Optical Characteristics AMIS-710228 High Power Yellow-Green LED Parameter Symbol (1) Line scanning rate Tint Clock frequency (3) Bright output voltage (4) Bright output non-uniformity (5) Dark non-uniformity (6) Dark output voltage (7) Modulation transfer function
See notes below Table 8-D
(2)
Value 90 5.0 0.5 <+/-30 <40 <200 >40
Units sec MHz Volt % mV mV %
Note @ 5.0MHz clock frequency
Fclk Video output Up Ud Dark level (DL) MTF
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
Table 8-D: AMIS-710229 Electro-Optical Characteristics AMIS-710229 Low Power Yellow-Green LED Parameter Symbol (1) Line scanning rate Tint Clock frequency (3) Bright output voltage (4) Bright output non-uniformity (5) Dark non-uniformity (6) Dark output voltage (7) Modulation transfer function
(2)
Symbol 150 3.0 0.5 <+/-30 <40 <200 >40
Units sec MHz Volt % mV mV %
Notes @ 3.0MHz clock frequency
Fclk Video output Up Ud Dark level (DL) MTF
Definition: 1. Tint is the line scanning rate or integration time. Tint is determined by the interval between two SP. 2. Fclk: main clock frequency, also equals the video sampling frequency 3. The video output level is controlled with a voltage adjustment as well as the Integration time and LED light power. 4. Up = {[Vp(max) -Vp(min)]/Vp(max)}x100% Where Vp(max) = maximum peak pixel and Vp(min) = minimum pixel 5. Ud = Vdmax - Vdmin Vdmin is the minimum output voltage with LED off. Vdmax is maximum output voltage with LED on. 6. See paragraph under Reset Level and Video Sampling Time. 7. See Section 10: MTF Graph and its Discussion. A graph of the typical MTF vs. DOF Graph is depicted with discussion.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
9.0 Reset Level and Video Sampling Time
Figure 3: Video Pixel Definition
Figure 3 graphically shows the video signal waveform and defines the single video pixel structure. The signal output waveform is shown relative to the input clock waveform as well as the symbols and terminologies used to define the performance specifications. Figure 3 serves to explain the terminology used to characterize the dark signal levels and the recommended video pixel sampling times. Note 6, under Table 8-D, specifies the dark level (DL). This is the level during the dark read-out, i.e., either the module sits on black target or the light source is turned off. It is measured from ground or 0V. The reset level is a reference level for the reset switch which is not necessarily on ground because after the reset the signal is passed through an amplifier. The difference between the dark level and the reset level is called the pedestal (PED). In most cases, the offset control of the amplifier is used to adjust the dark level to 0V or ground. Hence, the reset level will sit below ground. The video pixels demonstrated in this graph emanate from an ideal CIS module with a phototransistor imaging structure. The video output at high speeds, such as 5.0MHz, does not instantly rise to its final value. Given enough time, it would asymptotically approach its steady state value. But, at high speeds it is impractical to wait for a final stable value. Accordingly, as Figure 3 indicates, the output signal continues to rise towards its steady state value. Consistent with the forgoing comments, in Note 7 under Table 8-D, instead of the conventional signal sampling time (tsst) is defined to substitute the conventional settling time definition. This definition is used because the output signal continues to rise asymptotically to the final stable value, but not within a practical time in high speed applications. This is true even when the video rises to its peak value (Vp) indicated on the MTF Graph, see Figure 4.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
10.0 MTF Graph and its Discussion
TYPICAL MTF VS DEPTH OF FOCUS
60 MTF IN % 50 40 30 20 10 0 0 0.2 0.4 0.6 DEPTH FROM THE WINDOW SURFACE(mm)
Figure 4: Typical MTF vs. Distance
This graph essentially shows the working depth-of-focus. Two curves indicate the spread among the modules. Note that MTF is greater than 40 percent out to a distance greater than 0.4mm from the glass surface. Since this module is a 200dpi module, a pixel density of 200 pixels per inch, the MTF was measured with a 100dpi or a 50 line-pair per inch optical bar pattern. The test was conducted with the pixel rate set to 2.5MHz. 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, .....1728 , Vp(n) is the signal amplitude of the n pixel. th Where n is 1, 2, .....1728 , Vp(n) is the signal amplitude of the nth pixel.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
11.0 Operating Conditions (25C)
Table 11-A: Recommended Operating Conditions (25 C): Item Symbol Power supply Vdd (positive) Vn (negative) Idd (positive) (1) In (negative) Input voltage at digital high Vih Input voltage at digital low Vil Clock frequency Fclk Clock pulse high duty cycle Clock pulse high duration Integration time Tint (4) Operating temperature Top
Min. 4.5 -10 60 20 Vdd-1.0 0 (2) 0.2 45.5 82
Typ. 5.0 -5 66 20 Vdd-0.5
Max. 5.5 -4.0 75 20 Vdd 0.6 (3) 5.5
25 50 150 25
50
Units V V ma ma V V MHz % ns s C
Table 11-B: AMIS-710227 Operating Conditions (25 C) AMIS-710227 Parameter Min. VLED ILED
Typ. 5.0 480
Max. 5.5 550
V ma
Table 11-C: AMIS-710228 Operating Conditions (25 C) AMIS-710228 Min. VLED ILED
Typ. 5.0 TBD
Max. 5.5 TBD
V ma
Table 11-D: AMIS-710229 Operating Conditions (25 C) AMIS-710229 Min. VLED ILED
Notes: 1. 2. 3. 4.
Typ. 5.0 TBD
Max. 5.5 TBD
V ma
Current is essential constant current with supply voltage Determined by the longest tolerable integration time, because of leakage current build up, the integration time is recommended to be no greater than 10ms The maximum call out is for the modules' electrical speed. The light source still dictates the highest speed performance. This specification is a standard used by the CIS makers for the Fax Industry.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
12.0 Switching Characteristics (25C)
The switching characteristics (25C) for the I/O clocks are shown in the diagram of Figure 5. Each switch timing characteristic for each waveform is represented by its symbolic acronym. Each corresponding switching time is defined in the Table 12-A. Note: Only one video output is shown because all four videos have identical electrical characteristics. The only physical difference is in Section 4,
output, VOUT4. Section 4 has only 6 sensor chips, hence its active scan is shorter by 64 pixels.
Figure 5: Module Timing Diagram
Table 12-A: 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
Note: 1.
Min. 0.20 50 25 0 20 0 20 100
Typ.
Max. 4.0 75
Units s ns % ns ns ns ns ns
"Prohibit crossing of start pulse" is to indicate that the SP should not be active high between any two consecutive clock pulses, specifically, between two consecutive low-going clock pulses. See the timing diagram. All falling clock edges under an active high SP loads the internal shift register, therefore the SP must be active over only one falling clock edge. High SP over all rising clock edge is ignored by the shift register. One simple way to ensure that the SP will not be actively high during two consecutive falling clock edges is to generate the SP on a rising clock edge and terminate it on the following rising clock edge.
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
13.0 Mechanical Structure of the Module
The isometric sketch, Figure 6, of the housing shows the connector location, the approximate overall dimensions and the general geometric layout of the module. It is not intended for use as a design reference. The detailed drawing for any of the AMIS-710227/228/229 modules is available upon request.
Figure 6: AMIS-710227/228/229 Module Mechanical Overview
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AMIS-710227, AMIS-710228, AMIS-710229: 200dpi CIS Module Data Sheet
14.0 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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