PI200MC-A4 200DPI PI200M-A4 PI3020 88054-X16

Peripheral Imaging Corporation PI200MC-A4 200DPI CIS Module Engineering Data Sheet Key Features · Light source, lens, and

TM Peripheral Imaging Corporation PI200MC-A4 PI200MC-A4 200DPI 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 · 437m sec/line scanning speed @ 4.0MHz clock rate · Wide dynamic range · Analog output · 660 Red LED light source · Compact size - 20.5 mm x 21.5 mm x 232 mm · Low power · Light weight General Description The PI200M-A4 PI200M-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 PI200M-A4 PI200M-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 The PI200M-A4 PI200M-A4 imaging array consists of 27 sensors, PI3020 PI3020 produced by Peripheral Imaging Corp. The sensor is a monolithic chip with an array of 64 photo sensing elements, of which 27 are cascaded to provide 1728 photo-detectors. These cascaded chips are contiguously aligned in a single row and bonded to PCB. See Figure 1, PI200M-A4 PI200M-A4's PAGE 1 OF 7 - PI200M-A4 PI200M-A4, 01/31/01 Block Diagram. This configuration allows a stream of sequential video pixels to be read from its output port, i.e., starting from 1st pixel located next to the connector end of the module and continues to and through the last pixel, 1728th. Each chip contains a complete control circuitry. Integrated within monolithic chip is a set of multiplex switches, and a digital shift register to control the chips sequential readout. Additionally, the chips contain a chip selection switch that is interrogated in a sequence as each predecessor chip completes its scanning process. GLED LED LED LED LED LED LED LED LED VLED ROD LENS 1726 PHOTO SENSORS 1 2 3 4 5 1727 1728 - VIDEO LINE VN(-V) VDD (+5) SHIFT REGISTER GRD BUFFER CP VIDEO AMPLIFIER SP VOUT GRD Figure 1. PI200M-A4 PI200M-A4 Block Diagram Figure 2, PI200M-A4 PI200M-A4's Cross Section, shows a mechanical cross section of the module's internal structure. Mounted in the module is number of components. These components function together to provide the module a complete integrated system. The LED light bar illuminates the documents through the window and reflection from the imaged documents is pickup and focused by the one-to-one graded indexed micro lens array. The lens, through the glass window, focuses the scanned images from the document onto the sensing plane of the sensor chips, which is mounted on the PCB. During the imaging process, the document is passed across the glass window's surface. The PCB board not only has the sensor chips mounted on it, but it has an on-board amplifier, a clock buffer for both the Start Pulse, SP, and the module's master clock, CP, buffer. This amplifier processes the pixel charges from the image sensor chips and converts them into voltage signal to produce a sequential stream of video at the output pin of the PI200M-A4 PI200M-A4 module. PAGE 2 OF 7 - PI200M-A4 PI200M-A4, 01/31/01 All these discussed components are housed in a small plastic housing which has a cover glass, the window. This housing with its sealed windows protects the imaging array, the micro lens assembly, and the LED light source from dust. DOCUMENT SURFACE GLASS WINDOW ROD LENS MODULE HOUSE LIGHT PATH D LE R BA SENSORS PCB INSIDE PICTORIAL OF MODULE Figure 2. PI200M-A4 PI200M-A4 Cross Section Pin Out Description There is one connector located at the end of the module. The outline of the module in Figure 4 of the mechanical section illustrates the connector location. With the module window facing down on flat surface, with the viewer looking down on backside of the module, and with the connector's pins facing viewer, the connectors is located on the left hand end of the module. The connector is a 2.0mm dual 8-pin rows with a total of 16 pin connector, part # Berg 88054-X16 88054-X16. Its I/O designation is provided in Table 1. I/O Designation. Pin number 1 location is indicated on the module outline. All of the odd pins are on the bottom row with pin number one on the edge closest to end of module. All of even pins are on the top row with pin 2 located adjacent to the pin 1. Pin Number 1, 2 , 4 & 8 3 5&6 7 9 &10 11 & 12 13 & 14 15 & 16 Symbol Gnd Vout Vdd (+5V) SP Vn (-5V to 12V) CP GLED VLED Names and Functions Ground; 0V Analog Video Output Positive power supply Start Clock Pulse Negative power supply Sampling clock pulse Ground for the light source; 0V Supply for the light source Table 1. I/O Designation PAGE 3 OF 7 - PI200M-A4 PI200M-A4, 01/31/01 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 7.0 70 -15 20 5.75 600 Vdd -0.5 Units V mA V mA V mA V V Table 2. Absolute Maximum Rating Note, these are the absolute maximums and are not to be used in prolonged operation. Operating Environment Operating temperature Operating humidity Storage temperature Storage humidity Top Hop Tstg Hstg 0 0 to 50 10 to 85 -25 to+85 5 to 95 C % 0 C % Table 3. Operating Environment Electro-Optical Characteristics (25° C) Parameter Symbol Number of photo detectors Pixel to pixel spacing Line scanning rate(1) Tint Parameter 1728 125 437 Units elements µm µsec Clock frequency(2) Bright output voltage Bright output(4) nonuniformity Adjacent pixel(5) nonuniformity Dark nonuniformity(6) Dark output voltage(6) Modulation transfer function(7) Up 4.0 1.0