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AMI SEMICONDUCTOR

AMIS-710627-A4 Datasheet Preview

AMIS-710627-A4 Datasheet

(AMIS-71062x-A40 CIS Module

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AMIS-710627-A4, AMIS-710628-A4, AMIS-710629-A4:
600dpi CIS Modules
Data Sheet
1.0 General Description
The AMIS-710627-A4 (PI627MC-A4), AMIS-710628-A4 (PI628MC-A4) and AMIS-710629-A4 (PI629MC-A4) are a family of contact
image sensor (CIS) modules, using MOS image sensor technology for high-speed performance and high sensitivity. They contain a
complete optical imaging system that includes the light source and focusing elements.
The modules’ contact image sensor is divided into four sections, each with its own video output and identical processing circuits
allowing for high scanning speeds. Each module comes with its own particular LED light source, which have different maximum light
power outputs. Since the light power limits the exposure, which is proportional to the product of scanning speed and light power, each
module will have a different maximum scanning speed and signal output voltage.
The modules can be used for scanning A4 size (216mm) documents with 23.62 dots per millimeter (dpm) resolution. Applications
include document scanning, mark readers, gaming, and office automation equipment.
2.0 Key Features
LED light source, lens and sensor are integrated into a single module
Ultra high-speed
Four parallel analog video outputs, clocked as high as 5.5MHz
270µsec/line scanning speed @ 5.0MHz clock rate for the red light source
23.62dots/mm resolution, 216mm scanning length
Wide dynamic range
Standard A4 size 14.5mm x 19.5mm x 232mm
Low power
Light weight
3.0 Functional Description
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Each of the three modules consists of 27 AMIS-720639 (PI3039) image sensors cascaded together. Each sensor consists of 192
photo-sensing elements (pixels), resulting in a module 5184 pixels long.
These image sensors have associated multiplex switches that are sequentially accessed with its digital shift register. In addition, each
has a chip-select switch that functions to activate its preceding sensor on the cascaded sequence, after its predecessor chip has
completed its scan. The start pulse initiates the shift register of the first chip in all four sections. The first chip then sequentially clocks
out the integrated image charge from each pixel. These charges are passed through the sensors’ multiplexing switch and then out onto
the video line, where they are converted to a voltage. When the sensor completes its scan, the chip-select switch on the following chip
is switched on to continue the line scan until it completes its scan in one section. A new scan is initiated when a start pulse is again
entered into the first chip of each section.
The 27 sensors are cascaded together and bonded onto a PCB. The cascaded sensors are then divided into four subsections, each
subsection having its own output. The first three subsections contain seven sensors and the fourth contains six sensors. Each output is
then connected to its own video line. The four video lines form a video line capacitance, which are buffered by video amplifiers, to act
as output drivers. The charge from each output is integrated onto the video line capacitance and readout. Each pixel is then reset and
ready to integrate again.
Mounted in the module is a one-to-one graded indexed micro lens array that focuses the scanned documents to be imaged onto its
sensing plane.
Illumination is by means of an integrated LED light source. The particular LED for each module is listed in Table 1.
AMI Semiconductor – Jan. 06, M-20493-001
www.amis.com
1




AMI SEMICONDUCTOR

AMIS-710627-A4 Datasheet Preview

AMIS-710627-A4 Datasheet

(AMIS-71062x-A40 CIS Module

No Preview Available !

AMIS-710627-A4, AMIS-710628-A4, AMIS-710629-A4:
600dpi CIS Modules
Data Sheet
Table 1: Module vs. LED Light Source
Module
LED Type
AMIS-710627-A4 660nm Red LED bar
AMIS-710628-A4 525nm Green LED bar
AMIS-710629-A4 Low-power Yellow-Green LED bar
All components are housed in a small plastic housing which has a glass cover that acts as the focal point for the object being scanned
and protects the imaging array, micro lens assembly, and LED light source from dust.
Figures 1 and 2 show a block diagram and a cross section of a module.
www.DataSheet4U.com
Figure 1: Module Block Diagram
AMI Semiconductor – Jan. 06, M-20493-001
www.amis.com
Figure 2: Module Cross Section
2


Part Number AMIS-710627-A4
Description (AMIS-71062x-A40 CIS Module
Maker AMI SEMICONDUCTOR
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