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TM Peripheral
Imaging Corporation
PI207MC-A4 200DPI CIS Module Engineering Data Sheet
Key Features * Light source, lens, and sensor are integrated into a single module * 8 dpm resolution, 216 mm scanning length * Dual LED light source, IR and Red, with a line scan time to 347 msec @ 5 MHz * Wide dynamic range * Analog output * Compact size @ 14.5 mm x 19.5 mm x 232 mm * Low power * Light weight
General Description
The PI207MC-A4 is a CIS module containing contact image sensors, using MOS image sensor technology for high-speed performance and high sensitivity. The PI207MC-A4 is suitable for scanning A4 size (216 mm) documents with 8 dots per millimeter resolution. Applications include fax machines, game systems, variety of mark readers, and other automation equipment requiring document scanners.
Functional Description
The PI207MC-A4 imaging array consists of 27 PI3033B sensors, produced by Peripheral Imaging Corp, that are cascaded to provide 1728 photo-detectors with their associated multiplex switches, and a digital shift register that controls its sequential readout. Mounted in the module is a one-to-one graded indexed micro lens array that focuses on the image of the scanned documents then transfers it onto the sensors. The onboard amplifier processes the video signal to produce a sequential stream of video at the output pin of the PI207MC-A4 module. Illumination is by means of integrated LED sources; Red (660nm) and IR (880nm). All components are housed in a small plastic housing which has a cover glass that acts as the focal point for the object being scanned. In addition, it protects the imaging array, micro lens assembly, and LED light source from dust. Inputs and Outputs (I/O) to and from the module are by a 10-pin connector, JAE 1L-Z-10P-S125L3-E, located on one end of the module. For pin 1 location, see Figure 4, Overall View of the Module Housing.
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A cross section of the PI207MC-A4 Module is shown in Figure 1 and a block diagram in Figure 2.
DOCUMENT SURFACE
GLASS WINDOW LIGHT PATH
MODULE HOUSE
ROD LENS
D LE
R BA
SENSORS PCB
Figure 1. PI207MC-A4 Cross Section
RED GLED VLED IR GLED
IR LED RED LED IR LED RED LED IR LED RED LED IR LED RED LED IR LED RED LED IR LED RED LED IR LED RED LED IR LED RED LED
ROD LENS
1234
PHOTO SENSORS
1726 1727 1728
VN(-V) VDD(+5) GRD
SHIFT REGISTER
VIDEO LINE
BUFFER
VIDEO AMPL
VOUT
CP
SP
GRD
Figure 2. PI207MC-A4 Module Block Diagram
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Connector Pinout Designation
Connector is JAE part number 1L-Z-S125L3-E. Pin Number 1 2 3 4 5 6 7 8 9 10 Symbol VOUT GND Vdd (+5V) Vn (-5V to -12V) GLED RED SP GND CP GLED IR VLED Names and Functions Analog Video Output Ground; 0V Positive power supply Negative power supply Ground for the Red light source; 0V Shift register start pulse Ground; 0V Sampling clock pulse Ground for the IR light source; 0V Supply for the light source
Table 1. Pinout Configuration
Maximum Ratings
Parameter Power supply voltage Symbols Vdd Idd Vn In VLED IR VLED RED ILED IR ILED RED Vih Vil Maximum Rating 7 80 -15 7 5.5 5.5 500 600 Vdd -0.5 Units V mA V mA V V mA mA V V
Input clock pulse (high level) Input clock pulse (low level)
Table 2. Maximum Rating Note. These are the maximum ratings and are not to be used in a prolonged condition.
Operating Environment
Parameter Operating temperature Operating humidity Storage temperature Storage humidity Symbol Top Hop Tstg Hstg Range 0 to +50 +10 to +85 -25 to +75 +5 to +95 Units 0 C % 0 C %
Table 3. Operating Environment
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Electro-Optical Characteristics
The tabled values are measured at 25 C Parameter Number of photo detectors Pixel to pixel spacing Line scanning rate (1) Clock frequency (2) Bright output voltage (3) Bright output Non-uniformity (4) Adjacent pixel Non-uniformity (5) Dark Non-uniformity (6) Dark output voltage (6) Modulation transfer function (7) Symbol Tint fclk Vpavg Up Uadj Ud Vd MTF Typical 1728 125 347 5.0 1.1 +/- 0.1 <|+/-30| <25 <75 <200 >40 Units elements mm msec MHz Volts % % mV mV % Note @ 5.0 MHz clock frequency
Table 4. Electro-Optical Characteristics at 25 C
Notes. 1. Tint is the line scanning rate or integration time. Tint is determined by the interval of two start pulses, SP. The integration time of 347msec is set at the factory. For additional comments, see note (1) under Table 5, Recommended Operating Conditions. 2. fclk: main clock frequency. 3. Vpavg = a Vp(n)/1728. 4. Up = [(Vpmax - Vpavg) / Vpavg] x 100% or [(Vpavg - Vpmin) / Vpavg] x 100%, Where Vpmax = maximum pixel amplitude in the line scan and Vpmin = minimum pixel amplitude in the line scan. 5. Upadj = MAX[ | (Vp(n) - Vp(n+l) | / Vp(n)) x 100% Upadj is the non-uniformity in percent between adjacent pixels, Where Vp(n) is the nth pixel in the line scan. 6. Ud = Vdmax - Vdmin. Vd = the average dark output level. Vdmin is the minimum output voltage on a black document (LED is turned off). Vdmax is the maximum output voltage on a black document (LED is turned off). 7. MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%] Vmax: maximum output voltage at 50 lp/in and Vmin: minimum output voltage at 50 lp/in, where lp/in is the line pairs per inch.
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Recommended Operating Conditions
The tabled values are measured at 25 C. Parameter Power Supply Symbol Vdd Vn VLED IR VLED RED ILED IR ILED RED Idd Ivn Vih Vil fclk Tint Top Min 4.5 -4.5 4.5 4.5 200 250 55 4.0 Vdd-1.0 0 25 45.5 316 Mean 5.0 -5 5 5 300 350 60 5.0 Vdd-0.5 Max 5.5 -12 5.5 5.5 500 600 70 5.5 Vdd 0.8 5.5 10000 50 Units V V V mA mA mA mA V V MHz % ns s C
Input voltage at digital high Input voltage at digital low Clock frequency (1) Clock pulse high duty cycle Clock pulse high duration Integration time(1) Operating temperature
25
Table 5. Recommended Operating Conditions at 25C
Note. 1. Electrically, including the image sensors, the circuits will operate above 5.5 MHz with Tint at 316 s. However the light power is fixed, hence with the shorter integration time, the exposure is reduced. This reduction limits the specification call out to integration time of 0.347 ms at 5.0MHz for 1.0 V output.
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Timing Characteristics
The Timing characteristics for the I/O clocks are shown in Figure 3. See timing symbol definitions in Table 6. The listed values are measured at ~25 C.
to CP tprh tdh SP tds Vout tsh tdl
tw
Figure 3. Timing Diagram
Parameters 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 tds tdh tdl tsh
Min. 0.333 82 25 15 20 20 50 120
Typical
Max. 5.8 75
Units s ns % ns ns ns ns ns
Table 6. Timing Symbol Definitions for Figure 3 Timing Diagram
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PI207MC-A4 Module and Its Mechanical Dimensions
This is an overview drawing of the module. A full size drawing is available upon request.
Figure 4. Overall View of the Module Housing
.
a2003 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
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