AMI PI317MC-A6C

™
Peripheral
Imaging
Corporation
PI317MC-A6
300DPI CIS Module
Engineering Data Sheet
Key Features
• Light source, lens, and sensor are integrated into a single module
• 11.8 dpm resolution, 104 mm scanning length
• Up to 250 µsec/line scanning speed, with 5MHz pixel rate
• Wide dynamic range
• Analog output
• Yellow-green LED light source
• Compact size ≅ 14 mm x 19 mm x 120 mm
• Low power
• Light weight
General Description
The PI317MC-A6 is a contact imaging sensor, CIS, module, which is composed of 13
PI3021 sensor chips. The PI3021 is a 300 DPI solid-state line imaging array, also a
product of Peripheral Imaging Corporation. This imaging device is fabricated using MOS
imaging sensor technology for high-speed performance and high sensitivity. The
PI317MC-A6 is suitable for scanning A6 size (104 mm) documents with 11.8 dots per
millimeter resolution. Applications include ticket, check and card scanners, variety of mark
readers, and other automation equipment.
Functional Description
The PI317MC-A6 imaging array consists of 13 sensors that are cascaded to provide 1248
photo-detectors with their associated multiplex switches, and a digital shift register that
controls its sequential readout. Mounted in the module is one-to-one graded indexed
PAGE 1 of 6 PI317MC-A6, 05/01/01
micro lens array that focuses the scanned documents to image onto its sensing plane.
The on-board amplifier processes the video signal to produce a sequential stream of video
at the video output pin of the PI317MC-A6 module.
Illumination is by means of an integrated LED light source. All components are housed in
a small plastic housing which has a cover glass which acts as the focal point for the object
being scanned and protects the imaging array, micro lens assembly, and LED light source
from dust. I/O to the module is the 10-pin connector located on one end of the module.
The cross section of the PI317MC-A6 is shown in Figure 1 and the block diagram in
Figure 2.
DOCUMENT SURFACE
GLASS WINDOW
ROD LENS
MODULE HOUSE
LIGHT PATH
D
LE
R
BA
SENSORS
PCB
INSIDE PICTORIAL OF MODULE
Figure 1. PI317MC-A6 Cross Section
GLED
LED
LED
LED
LED
LED
LED
LED
LED
VLED
ROD LENS
1246
PHOTO SENSORS
1
2
3
4
5
1247
1248
----------------
VIDEO
LINE
VN(-V)
VDD (+5)
SHIFT REGISTER
GRD
BUFFER
CP
VIDEO AMPLIFIER
SP
VOUT
GRD
Figure 2. PI317MC-A6 module block diagram.
(See Table 1 below)
PAGE 2 of 6 PI317MC-A6, 05/01/01
Pin Number
1
2
3
4
5
6
7
8
9
10
Symbol
Names and Functions
Analog Video Output
Ground; 0V
Positive power supply
Negative power supply
Ground; 0V
Shift register start pulse
Ground; 0V
Sampling clock pulse
Ground for the light source; 0V
Supply for the light source
Vout
Gnd
Vdd (+5V)
Vn (-5V to –12V)
Gnd
SP
Gnd
CP
GLED
VLED
Table 1. Pin configuration
Absolute Maximum Rating:
Parameter
Power supply voltage
Symbols
Vdd
Idd
Vn
In
VLED
ILED
Input clock pulse (high level) Vih
Input clock pulse (low level) Vil
Maximum Rating
10
50
-15
10
5.5
500
Vdd – 0.5V
-0.6
Units
V
ma
V
ma
V
ma
V
V
Operating Environment
Operating temperature
Operating humidity
Storage temperature
Storage humidity
0 to 50
10 to 85
-25 to+75
5 to 95
°C
%
°C
%
Top
Hop
Tstg
Hstg
Electro-Optical Characteristics (25° C)
Table 2. Electro-optical characteristics at 25° C.
Parameter
Symbol
Number of photo detectors
Pixel to pixel spacing
Parameter
1248
84.7
PAGE 3 of 6 PI317MC-A6, 05/01/01
Units
elements
µm
Note
Line scanning rate
Tint (1)
250
µsec
Clock frequency (2)
Bright output voltage (3)
Bright output
nonuniformity (4)
Adjacent pixel
nonuniformity (5)
Dark nonuniformity (6)
Dark output voltage
Modulation transfer
function (7)
f
Video Output
Up
5.0
1.0 +/-0.1
<+/-30
MHz
V
%
Uadj
<25
%
Ud
Vd
MTF
<100
<450
>40
mV
mV
%
@ 5.0 MHz
clock
frequency
Definition:
(1) Tint: Line scanning rate or integration time. Tint is determined by the interval of two
SP, start pulses.
(2) f: main clock frequency,
(3) Vpavg = ∑ Vp(n)/1248; where n=1, 2, 3....., 1248
(4) Up = [(Vpmax - Vpavg) / Vpavg] x 100% or [(Vpavg - Vpmin) / Vpavg] x 100% where
Vpmax = the maximum V(n) and Vpmin = the minimum V(n)
(5) Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)] x 100%
Upadj is the nonuniformity percentage pixel to pixel
(6) Ud = Vdmax - Vdmin
Vdmin is the minimum output voltage, LED off.
Vdmax is the maximum output voltage, LED off.
(7) MTF = [(Vpmax - Vpmin) / (Vpmax + Vpmin)] x 100[%]; tested on a 75 lp/inch target.
Vpmax: maximum output voltage
Vpmin: minimum output voltage
lp / inch: line pair/inch
Recommended Operating Conditions (25 °C)
Item
Power Supply
Input voltage at digital high
Input voltage at digital low
Clock frequency
Clock pulse high duty cycle
Symbol
Vdd
Vn.
VLED
Idd
Ivn
ILED
Vih
Vil
f
Min
4.5
-4.5
Vdd-1.0
0
Mean
5.0
-5
5
47
6.0
450
Vdd-.5
25
PAGE 4 of 6 PI317MC-A6, 05/01/01
Max
5.5
-12
55
10.0
500
Vdd
0.8
5.0
Units
V
V
V
ma
ma
ma
V
V
MHz
%
Clock pulse high duration
Integration time
Operating temperature
50
0.25
ns
ms
25
°C
* Tint (Min) is the lowest line integration time available with 5.0 MHz clock rate.
Tint
Top
5.0
50
Switching Characteristics (25°C)
to
tw
CP
tprh
tdh
SP
tds
tdl
Vout
tsh
MODULE TIMING DIAGRAM
The switching characteristics for the I/O clocks are shown in the above timing diagrams.
See timing symbol definitions in the following table.
Item
Clock cycle time
Clock pulse width
Clock duty cycle
Prohibit crossing time
of Start Pulse
Data setup time
Data hold time
Signal delay time
Signal settling time
Symbol
to
tw
tprh
Min.
0.20
50
25
15
tds
tdh
tdl
tsh
20
20
50
120
Typical
Max.
4.0
75
Symbol Definitions for the Above Timing Diagram
PAGE 5 of 6 PI317MC-A6, 05/01/01
Units
µs
ns
%
ns
ns
ns
ns
ns
PI317MC-A6 Module and Its Mechanical Dimensions
m
.5m
19
1
pin
m
.0m
m
0m
14
12
B
PC
in
0p 3-E
x 1 5L
m -S12
m
5
P
1.2 Z-10
1AE
J
NE
LI
AD
RE
mm
6.0
g
s
las
su
rfa
ce
Pictorial of the Plastic A6 Housing Size
The sketch of this module is to provide a pictorial of the module size and structure. A
detailed drawing is available upon request.
©2001 Peripheral Imaging Corporation. Printed in USA. All rights reserved. Specifications
are subject to change without notice. Contents may not be reproduced in whole or in part without
the express prior written permission of Peripheral Imaging Corporation. Information furnished
herein is believed to be accurate and reliable. However, no responsibility is assumed by Peripheral
Imaging Corporation for its use nor for any infringement of patents or other rights granted by
implication or otherwise under any patent or patent rights of Peripheral Imaging Corporation.
PAGE 6 of 6 PI317MC-A6, 05/01/01