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AMI SEMICONDUCTOR

AMIS-710616-AS Datasheet Preview

AMIS-710616-AS Datasheet

CIS PCB

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AMIS-710616-AS: CIS PCB
Product Specification
Data Sheet
1.0 General Description
This data sheet covers the AMIS-710616-AS (PI616MC-AS) specification.
CIS stands for contact image sensor. It is a one-dimension array of photosensitive elements, designed to image documents with a one-
to-one magnification ratio. The sensors are sequentially cascaded to form a one dimensional variable-length line array in multiple
integral numbers, hence providing the users with desired lengths.
The AMIS-710616-AS is one of these special length line-image arrays. It is configured with a total of eight sub-sections, each section
containing a sequential line of five array sensors, with its individual video output line. These eight video outputs are also referred to as
tapped outputs. They are all read out in parallel (see Figure 1). The eight sub-sections are sequentially cascaded to form the one-
dimensional array. It is fabricated on two printed circuit boards (PCB) referred to as sensor boards. Each sensor board contains four
sub-sections. The two sensor boards are cascaded in series to form a complete line image sensor of eight sub-sections with a total
read length of 325mm. Accordingly, each sensor board contains 20 each of AMIS-720639 (PI3039) image sensors, also a product of
AMIS. Hence, for both boards there are a total of eight parallel tapped outputs and 40 each of the AMIS-720639 image array sensors.
Each chip has 192 photo sensing cells, hence on one board there are 3840 cell sites and a total of 7680 cell sites for both boards. Each
cell site is a photo-detector, which possesses its own independent processing circuit. An associated on-chip digital shift register scans
and reads the video signal of each photo detector onto a common output video line. In sections of five sensors, these common output
video lines are individually brought out to the I/O connectors of the sensor boards. There are two connectors, one on each board, each
containing four video outputs. These connectors are connected via a cable to their respective amplifier boards (see Figure 2). The
schematic of the AMIS-710616-AS and its PCB mechanical outline drawing are attached to this data sheet.
2.0 Overview
The AMIS-710616-AS has 324.2mm read width. Its recommended line rate is 192µs/line at a 5.0MHz clock rate, but its minimum can
be as low as 160µs/line at its maximum clocking speed of 6.0MHz. Its sensor photo-site density is 23.25elements/mm. See AMI
Semiconductor’s AMIS-720639 data sheet, which covers the specifications on the imaging array sensor. Operationally, it requires only
the power supplies, +5V and –5V and two input clocks, one is the clock (CP), to operate the internal shift registers and the second is
the start pulse (SP), to initiate the output scan.
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3.0 Scan Outline
Table 3-1: Scanning Outline
Item
Readable width
Sensor photo-site density
Number of total active sensor photo-sites
Number of photo-sites per tap
Total line read time = read time per section
Clock frequency
Specification
324.2mm
23.25elements/mm
7680 elements
960
192µs/line
160µs/line
5.0MHz
6.0MHz
Note
Typical, tested @ 5.0MHz Clock
Minimum, tested @ 6.0MHz Clock
Typical
Maximum
AMI Semiconductor – July 06, M-20595-001
www.amis.com
1




AMI SEMICONDUCTOR

AMIS-710616-AS Datasheet Preview

AMIS-710616-AS Datasheet

CIS PCB

No Preview Available !

AMIS-710616-AS: CIS PCB
Product Specification
Data Sheet
4.0 Physical Outline
Table 4-1: Physical Outline
Item
Image sensors
PCB stiffner board
Sensor PCB
Data output
Sensor board connectors
Amplifier PCB board
Amplifier board’s four connectors
Specification
AMIS-720639
PCB stiffner board size
355.6mm x 41.3mm x 6.35mm
Size 165.1mm x 21.4mm x 1.62mm
Eight analog video outputs
Two I/O connectors
MOLEX 52610-1590
Size 291.3mm x 76.2mm x 1.6mm
Two inputs: MOLEX 52207-1950
Two outputs: ERNI-594083
Note
See referenced image sensor data sheet
Two PCBs mounted on the stiffner
Used to connect to their respective output
amplifiers
Mounted are eight output amplifiers for each
of the video lines from the sensor boards
5.0 Recommended Operating Conditions (25°C)
Table 5-1: Recommended Operating Conditions at 25°C
Item
Symbol
Min.
Typ.
Max.
Units
Power supply
VDD 4.5 5.0 5.5
V
IDD 135 150 165
ma
VSS
|-5.0|
|-5.5|
V
Video output levels
Video saturation output
Video line saturation output
ISS
Vpavg (1)
VSATA (2)
VSATV (2)
45 60
3.0
5.5
1.2
ma
V
V
V
Input voltage at digital high (input clocks, SP and CP)
VIH
VDD-1.0 VDD-.5 VDD+0.3
V
Input voltage at digital low (input clocks SP and CP)
VIL
0
0.8
Clock frequency
Freq (3)
5.0 6.0
Clock pulse high duty cycle
Duty (4)
25
75
Clock high duration
TPW(3)(5)
83.3
100
V
MHz
%
Ns, at 50 percent duty
Integration time
Tint 192µs/line
Typical, tested @ 5.0MHz clock
Operating temperature
Top (6)
160µs/line
25
Minimum, tested @ 6.0MHz clock
50 °C
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(1) Vpavg is a symbol representing the average value of every pixel in the complete line scan. Vp(n) is the pixel amplitude of the nth pixel in a line scan. This
measurement is taken with the image array under a uniform light exposure. The typical output is specified with a uniform input light exposure of 0.5µJ/cm2 from a
blue Led light source.
(2) Two saturated video output levels are specified. One is at the video signal’s output amplifier, VSATA, and the other is at the input of the amplifier. In almost all
applications, because the integration time is usually too short, there is not enough exposure time to saturate the array sensors. Accordingly, each output amplifier
is fixed with a gain of 4.5.
(3) Freq is generally fixed for any application for the following reasons: One is the exposure time. With a given light power, the exposure time of the sensor can be
related to the clock frequency. The second is the shape of the video output pulse. Because the output video is in pulse charge packets, the signals are processed
on the output video line of the sensors. Hence, the signal shape depends greatly upon the amplifier configurations. Please refer to the referenced AMIS-720639
data sheet. It has some brief outline application notes. Under Note 6 on Page 6, there is a discussion about video pulse shapes. On Page 8, 9 and 10 there are
discussions on the three types of signal output stages.
(4) Duty is the ratio of the clock’s pulse width over its pulse period. Because the video pixel output resets during the clock pulse’s high period and because the reset
requires a finite resetting time, it is recommended to operate the clock duty cycle within the following limits. See the referenced data sheet in Note 3, above.
Noting that the larger the duty, the less the signal amplitude, while too short of a clock pulse will not provide enough video reset time and leaves residual charges,
the recommended duty is 25 percent for frequencies less than 5MHz and 50 percent for frequencies greater than 5MHz.
(5) Tint is determined by the time interval between two start pulses, (SP). Hence, if the SP is generated from a clock count down circuit, it will be directly proportional
to the clock frequency and it will be synchronous with the clock frequency. The longest integration time is determined by the degree of leakage current degradation
that can be tolerated by the system. A 10ms maximum is a typical rule-of-thumb. An experienced CIS user can use his discretion and determine the desired
tolerance level for the given system.
(6) Top is a conservative engineering estimate. It is based on measurements of similar CIS modules and simple bench top tests, using heat guns and freeze sprays.
These will be re-measured during the pilot production under the standard QA practices that are under the control of ISO 9000.
AMI Semiconductor – July 06, M-20595-001
www.amis.com
2


Part Number AMIS-710616-AS
Description CIS PCB
Maker AMI SEMICONDUCTOR
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