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| TM Peripheral Imaging Corporation PI403MC-A6 400DPI CIS Module Engineering Data Sheet Key Features * Light source, lens, and sensor are integrated into a single module * 16 dpm resolution, 104 mm scanning length * Up to 333 sec/line scanning speed, with 5MHz pixel rate * Wide dynamic range * Analog output * Red LED light source (660 nm) * Compact size 14 mm x 19 mm x 120 mm * Low power * Light weight General Description The PI403MC-A6 is a contact imaging sensor, CIS, module, which is composed of 13 PI3022 sensor chips. The PI3022 is a 400 DPI solid-state line imaging array, also a product of Peripheral Imaging Corporation. This imaging device is fabricated using imaging sensor technology for high-speed performance and high sensitivity. The MOS PI403MC-A6 is suitable for scanning A6 size (104 mm) documents with 16 dots per millimeter resolution. Applications include ticket, check and card scanners, variety of mark readers, and other automation equipment. Functional Description The PI403MC-A6 imaging array consists of 13 sensors that are cascaded to provide 1664 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 - PI403MC-A6, 10-13-00 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 PI403MC-A6 module. Illumination is by means of an integrated LED light source. All components are housed in a small plastic housing with 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, see Figure 4, Module Housing. The cross section of the PI403MC-A6 is shown in Figure 1 and the block diagram in Figure 2. DOCUMENT SURFACE GLASS WINDOW LIGHT PATH MODULE HOUSE ROD LENS D LE R BA SENSORS PCB INSIDE PICTORIAL OF MODULE Figure 1. PI403MC-A6 Cross Section GLED LED LED LED LED LED LED LED LED VLED ROD LENS 1662 PHOTO SENSORS 1 2 3 4 5 ---------------- 1663 1664 VIDEO LINE VN(-V) VDD (+5) SHIFT REGISTER GRD BUFFER VIDEO AMPLIFIER VOUT CP SP GRD Figure 2. PI403MC-A6 module block diagram. (See Table 1 below) PAGE 2 OF 6 - PI403MC-A6, 10-13-00 Pin Number 1 2 3 4 5 6 7 8 9 10 Symbol Vout Gnd Vdd (+5V) Vn (-5V to -12V) Gnd SP Gnd CP GLED VLED 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 Table 1. Pin configuration Absolute Maximum Rating: Parameter Power supply voltage Symbols Maximum Rating Vdd 7 Idd 70 Vn -15 In 15 VLED 5.5 ILED 400 Input clock pulse (high level) Vih Vdd - 0.5V Input clock pulse (low level) Vil -0.6 Table 2. Absolute Maximum Rating Note: Not to recommended for operational conditions. Units V ma V ma V ma V V Operating Environment Operating temperature Top 0 to 50 Operating humidity Hop 10 to 85 Storage temperature Tstg -25 to+75 Storage humidity Hstg 5 to 95 Table 3. Typical Operational Environment for CIS 0 C % 0 C % PAGE 3 OF 6 - PI406MC-A6, 10-13-00 Electro-Optical Characteristics (25 C) Parameter Symbol Number of photo detectors Pixel to pixel spacing Line scanning rate Tint(1) Parameter 1664 63.1 333 Units elements m sec MHz V % % mV mV % Note @ 5.0 MHz clock frequency Clock frequency(2) Bright output voltage(3) Bright output nonuniformity(4) Adjacent pixel nonuniformity(5) Dark nonuniformity(6) Dark output voltage(7) Modulation transfer function(8) f Video Output Up Uadj Ud Vd MTF 5.0 1.0 <+/-30 <25 <100 <550 >50 Table 4. Electro-optical characteristics at 25 C. 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)/1664 (4) Up = [(Vpmax - Vp) / Vp] x 100% or [(Vp - Vpmin) / Vp] x 100% (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 on a black document(O.D.=0.8) Vdmax: maximum output voltage of black document (O.D.= 0.8) (7) Vd is the dark level, measured from the reset level. (8) MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%] Vmax: maximum output voltage at 100 lp/in Vmin: minimum output voltage at 100 lp/in (9) O.D. = Optical Density (10) lp / in: line pair per inch PAGE 4 OF 6 - PI403MC-A6, 10-13-00 Recommended Operating Conditions (25 C) Item Power Supply Symbol Vdd Vn. VLED Idd Ivn ILED Vih Vil f Min 4.5 -4.5 Mean 5.0 -5 5 47 6.6 280 Vdd-.5 Max 5.5 -12 5.5 55 10.0 350 Vdd 0.8 5.0 Units V V V ma ma ma V V MHz % ns ms 0 C Input voltage at digital high Input voltage at digital low Clock frequency Clock pulse high duty cycle Clock pulse high duration Integration time Operating temperature Vdd-1.0 0 25 50 0.333 Tint* Top 25 5.0 50 Table 5. Recommend Operational Characteristics * Tint (Min) is the lowest line integration time available with 5.0 MHz clock rate. Switching Characteristics (25C) to CP tprh tdh SP tds Vout tsh tdl tw FIGURE 3. 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 Symbol to Min. 0.20 Typical Max. 4.0 Units s PAGE 5 OF 6 - PI403MC-A6, 10-13-00 Clock pulse width Clock duty cycle Prohibit crossing time of Start Pulse Data setup time Data hold time Signal delay time Signal settling time tw tprh tds tdh tdl tsh 50 25 15 20 20 50 120 75 ns % ns ns ns ns ns Table 6. Symbol Definitions for the Above Timing Diagram PI403MC-A6 Module and Its Mechanical Dimensions 19 .5m m 12 m 0m PC B pin 1 14 .0m m in 0p 3-E x 1 5L m -S12 5m P 1.2 Z-10 E1 JA RE L AD IN E mm 6.0 gla s u ss rfa ce Pictorial of the Plastic Standard A6 Housing Size Figure 4. Module Housing The sketch of this module is to provide a pictorial of the module size and structure. A detailed drawing is available upon request. (c)2000 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 - PI403MC-A6, 10-13-00 |
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