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PDF AMIS-710411-A7 Data sheet ( Hoja de datos )
| Número de pieza | AMIS-710411-A7 | |
| Descripción | CIS Module | |
| Fabricantes | AMI SEMICONDUCTOR | |
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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 282µsec/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
wwpwri.nDteatdaScihreceuti4t Ub.ocaormd (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.
AMI Semiconductor – July 06, M-20593-001
www.amis.com
1
1 page  
AMIS-710411-A7: 400dpi CIS Module
9.0 Switching Characteristics (25°C)
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
wwCwlo.cDkactaySclheeteimt4eU.com
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
µs
ns
%
ns
ns
ns
ns
ns
AMI Semiconductor – July 06, M-20593-001
www.amis.com
5
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