™ Peripheral Imaging Corporation PI201M-A4 CIS Module 200DPI CIS Sensor Engineering Data Sheet Key Features • Light source, lens, and sensor are integrated into a single module • 8 dpm resolution, 216 mm scanning length • 1.72 ms/line scanning speed • Wide dynamic range Analog output • Yellow-Green light source • Compact size – 14 mm x 19.5 mm x 232 mm • Low power • Light weight General Description The PI201M-A4 is a CIS module. It is a long contact image sensor, using MOS image sensor technology for high-speed performance and high sensitivity. The PI201M-A4 is suitable for scanning A4 size (216 mm) documents with 8 dots per millimeter resolution. Applications include document scanners, mark readers, and other office automation equipment. Functional Description DOCUMENT SURFACE LIGHT PATH ROD LENS MODULE HOUSE The PI201M-4A imaging array consists of 27 sensors 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 one-toone graded indexed micro lens array that focuses the scanned documents to image onto its sensing plane. The onboard amplifier processes the video signal to produce a sequential stream of video at the video output pin of the PI201M-A4 module. GLASS WINDOW D LE R BA SENSORS PCB INSIDE PICTORIAL OF MODULE Figure 1. PI201M-A4 Cross Section PAGE 1 OF 6 PI201M-A4, 7/17/99 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 GLED LED LED LED LED LED LED LED LED array, micro lens assembly, and LED VLED light source from dust. ROD LENS I/O to the module is 1726 1728 the 10-pin connector 1727 PHOTO SENSORS VIDEO LINE located on one end of 1 2 3 4 5 ---------------VN(-V) the module. The cross VDD (+5) section of the SHIFT REGISTER PI201M-A4 is shown GRD in Figure 1 and the BUFFER VIDEO AMPLIFIER VOUT block diagram in Figure 2. CP SP GRD Figure 2. PI201M-A4 module block diagram 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 40 -15 10 5.25 650 Vdd – 0.5V -0.8 Units V mA V mA V ma V V Recommended Operating Conditions (25 °C) Item Power Supply Input voltage at digital high Input voltage at digital low Clock frequency Symbol Vdd Vn. VLED Idd Ivn ILED Vih Vil f Min 4.5 -4.5 Vdd-1.0 0 Typical 5.0 -5 5 11 6.0 350 Vdd-.5 PAGE 2 OF 6 PI201M-A4, 7/17/99 Max 5.5 -12 30 10.0 550 Vdd 0.8 1.0 (1) Units V V V ma ma ma V V MHz Clock pulse high duty cycle 25 % Clock pulse high duration 250 ns Integration time Tint 1.728 10.0 ms 0 Operating temperature Top 25 50 C Note (1) the module will produce video above 1.5 MHz, but with adjacent pixel smearing. Hence, with signal degradation it can be used above 1.5MHz. Operating Environment Operating temperature Operating humidity Storage temperature Storage humidity Top Hop Tstg Hstg 0 0 to 50 10 to 85 -25 to+75 10 to 90 C % 0 C % Electro-Optical Characteristics (25° C) Table 2. Electro-optical characteristics at 25 Parameter Number of photo detectors Pixel to pixel spacing Line scanning rate Clock frequency(2) Bright output voltage(3) Bright output nonuniformity(4) Adjacent pixel nonuniformity(5) Dark nonuniformity(6) Dark output voltage(6) Modulation transfer function(7) Symbol Tint(1) ° C. Parameter 1728 125 1.728 Units elements µm ms 1.0 0.6 <+/-30 MHz Volts % <25 % <200 <200 >30 mV mV % Note @ 1.0 MHz clock frequency Definition: (1) Tint: line scanning rate or integration time. Tint is d etermined by the intervaltwo of start pulse (SP). (2) f: main clock frequency, (3) Vpavg = ∑ Vp(n)/1728 (4) Up = [(Vpmax - Vp) / Vp] x 100% or [(Vp - Vpmin) / Vp] x 100% PAGE 3 OF 6 PI201M-A4, 7/17/99 (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) MTF = [(Vmax - Vmin) / (Vmax + Vmin)] x 100 [%] Vmax: maximum output voltage at 4.0 lp/mm Vmin: minimum output voltage at 4.0 lp/mm (8) lp / mm: line pair per mm (9) O.D. Optical Density Switching Characteristics (250C) tw to CP tprh tdh SP tds tdl Vout tsh MODULE TIMING DIAGRAM Note: See timing symbol definitions in the following table. Symbol Definitions for the Above Timing Diagram 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. 1.0 250 25 15 tds tdh tdl tsh 20 20 50 350 Typical PAGE 4 OF 6 PI201M-A4, 7/17/99 Max. 4.0 75 Units µs ns % ns ns ns ns ns Table 1. Pin configuration 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 Mechanical Module Dimensions For the PI201M-A4 module housing and its mechanical dimensions see the attached full page size. Printed in USA. All rights reserved. Specifications ©1999 AMI Semiconductor. are subject to change without notice. Contents may not be reproduced in whole or in part without the express prior written permission of AMIS. Information furnished herein is believed to be accurate and reliable. However, no responsibility is assumed by AMIS for tis use nor for any infringement of patents or other rights granted by implication or otherwise under any patent or patent rights of AMIS. PAGE 5 OF 6 PI201M-A4, 7/17/99 PAGE 6 OF 6 PI201M-A4, 7/17/99