AMIS-710409

AMIS-710409-A4: 400dpi CIS Module Data Sheet 1.0 General Description The AMIS-710409-A4 (PI409MC-A4) is a contact image sensor (CIS) module. It is a long CIS module that uses MOS image sensor technology for high-speed performance and high sensitivity. Its four parallel video outputs give the AMIS710409-A6 its high speed performance. The AMIS-710409-A4 is suitable for scanning A4 size (216mm) documents with 15.8 dots per millimeter (dpi) resolution. Applications include document scanning, mark readers, gaming and office automation equipment. 2.0 Key Features • • • • • • • • • • Light source, lens and sensor are integrated into a single module Ultra high speed Four parallel analog video outputs clocked at 5.0MHz 180usec/line scanning speed @ 5.0MHz clock speed 15.8dpm resolution, 216mm scanning length Wide dynamic range Red light source 660nm Standard A4 size ≅ 14mm x 19mm x 232mm Low power Light weight 3.0 Functional Description The AMIS-710409-A4 imaging module consists of 27 AMIS-720442 (PI3042) imaging chips, produced by AMIS. The sensor chips are monolithic devices with 128 photo sensing elements. Twenty seven of these imaging chips are cascaded to provide a 3456 photoelements module. The AMIS-720442 chips are integrated with the associated multiplex switches of the photo sensors, a digital shift register and a chip selection switch. The shift register sequentially clocks out the integrated image charges from each of the sensing elements and passes them through the chip-select switch and out onto the video line. The chip-select switches are sequentially switched as each predecessor chip completes its scan. These 27 sensors, bonded on a PCB, are grouped into four sub-cascaded sections. Each contiguously cascaded chip section is connected on separate video lines, therefore providing four video outputs, VOUT1, VOUT2, VOUT3, and VOUT4. Before the signal charges from the four video lines appear at their respective outputs, they are converted to signal voltages by four on-board buffer amplifiers; one for each of its corresponding video section. The first three sections, VOUT1, VOUT2 and VOUT3 have seven sensor chips, while the VOUT4 has six sensor chips. Since each sensor chip has 128 pixels, there are a total of 3456 pixels (see Figure 1). Mounted in the module housing along with the PCB, is a one-to-one graded indexed micro lens array, which focuses image of the scanned documents onto the sensing line of the sensor chips. The third major component mounted in the module is the LED light source (see Figure 2). The pictorial cross section shows the LED bar light source and its Illumination path as it reflects the image from the document and focuses through the ROD lens onto the image sensing line of the sensing chips. All components are housed in a small plastic housing, which has a cover glass. This cover glass also serves as the window. It is the focal point for the object being scanned and protects all of the critical components within the housing from dust. I/O to the module is a 12-pin connector located on one end of the module (see Figure 5). AMI Semiconductor – July 06, M-20594-001 www.amis.com 1 AMIS-710409-A4: 400dpi CIS Module Data Sheet Figure 1: AMIS-710409-A4 Module Block Diagram (See Table 1 for Pin Out Designation) Figure 2: AMIS-710409-A4 Cross Section AMI Semiconductor – July 06, M-20594-001 www.amis.com 2 AMIS-710409-A4: 400dpi CIS Module 4.0 I/O Designation Table 1 lists the pin numbers and their designations for the I/O connector. It is a JAE IL-Z-12P-S125L3-E connector. Table 1: Pin Configuration Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 Symbol VOUT1 VOUT2 GND VOUT3 VOUT4 Vdd SP (START) GND CP (CLOCK) Vn GLED VLED Names and Functions Analog video output 1 Analog video output 2 Ground; 0V Analog video output 3 Analog video output 4 Positive power supply Shift register start pulse Ground; 0V Sampling clock pulse Negative power supply Ground for the light source; 0V Supply for the light source Data Sheet 5.0 Absolute Maximum Rating Table 2: Absolute Maximum Rating Parameter Power supply voltage Input clock pulse (high level) Input clock pulse (low level) Symbols Vdd Idd Vn In VLED ILED Vih Vil Maximum Rating 7 100 -15 35 6 600 Vdd – 0.5V -0.5 Units V ma V ma V ma V V Note: These parameters are absolute maximums. Do not operate under these conditions. 6.0 Environmental Specifications Table 3: Operating and Storage Environment Parameters Symbols (1) Operating temperature Top (1) Operating humidity Hop (1) Storage temperature Tstg (1) Storage humidity Hstg Note: (1) These are standard specifications for the CIS modules. Maximum Rating 0 to 50 10 to 90 -20 to +75 10 to 90 Units ° C % ° C % AMI Semiconductor – July 06, M-20594-001 www.amis.com 3 AMIS-710409-A4: 400dpi CIS Module 7.0 Electro-Optical Characteristics (25°C) Table 4: Electro-Optical Characteristics at 25 C Parameter Total number of photo detectors Section 1, 2 & 3 number of photo detectors Section 4 number of detectors Pixel-to-pixel spacing Line scanning rate (2) Clock frequency (3) Bright output voltage (4) Bright output non-uniformity (5) Dark non-uniformity (6) Dark output voltage (7) Modulation transfer function Notes: (1) (2) (3) (4) (5) ° Data Sheet Symbol Tint f Video output Up Ud Dark level (DL) MTF (1) Parameter 3456 896 768 63.5 180 5.0 500 +/-30