CIS 36-BIT COLOR SINGLE LINE SCANNER USER MANUAL XRD9827REF

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XRD9827REF

USER MANUAL

CANNON CIS 36-BIT COLOR

SINGLE LINE SCANNER

Summary of content (20 pages)

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XRD9827REF USER MANUAL CANNON CIS 36-BIT COLOR SINGLE LINE SCANNER
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY EVALUATION KIT PART LIST This kit contains the following: • XRD9827REF CIS 36-Bit Color Single Line Scanner • XRD9827REF User Manual • SenseIt 1.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY 8-BIT DATA FIFO SRAM CANON CVA-60216K 600DPI COLOR CIS PARALLEL PORT DB25 CONNECTOR CIS OUTPUT XRD9827 6-BIT BUS NIBBLE DATA CIS REFERENCE VOLTAGE INTEL 486 Compatible FIFO SRAM 8-BIT DATA XRD9827 CONTROL SIGNALS MACH435 CPLD PARALLEL PORT CONTROL CIS CONTROL SIGNALS Figure 1.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY How to Run the XRD9827REF Demonstration 1. 2. 3. 4. Make sure the computer is powered off and the AC power adapter is disconnected from a wall outlet Connect the parallel port cable to the printer port of the computer Connect the AC power adapter into a wall outlet Turn on the computer and activate Windows 95 Loading EXAR Software 5. 6. 7. 8.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY S S S D D D D D D D D 2 1 0 7 6 5 4 3 2 1 0 1 0 Figure 3. Dip Switches Set to Value [110 01000000] to Reset XRD9827 12. Select the Start Menu, choose Programs, then choose SenseIt icon 13. A window will pop up as shown below. The upper window shows the plot of captured data and the lower window shows the histogram of data.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 4. SenseIt Software Window Before Scanning 14. Select SETUP from the pull-down menu and choose I/O ADDRESS. In the window that pops up, type in the Input/Output Range of Printer Port of your computer. The default setting is 378H. 15. Pick the black target out from the kit and put it on a flat area.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 5. Non-calibrated Black Target Scan 16. Set the dip switches to [110 00010000] to tie VDCREF and VDCEXT pin together internally. Push the Serial Port button. The XRD9827 will subtract whatever voltage appears on VDCEXT (pin 16) from the input and thus perform a global offset adjustment. A typical result of the global offset adjustment is shown below.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 6. Black Target Scan After Global Offset Adjust Using the 9827 Internal Bandgap Reference Voltage 17. Then, set the dip switches to [111 00010000] and push the Serial Port button again. By doing this, a 1.24V reference voltage provided by an internal bandgap is applied to the VDCEXT pin.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY XRD9827 1.24V VDD BANDGAP VRT 12K PIN 19 (RED) C I S PIN 16 (VDCEXT) M U X RL 2.2uF VRB Figure 7. Simplified Block Diagram Showing Global Offset Adjustment by XRD9827 Using Internal Bandgap and CIS Using VDCEXT for Biasing 18. Set the dip switches to [001 01010000] to select the internal offset DAC for fine offset adjustment. Push the Serial Port button.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 8.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY XRD9827 VDD VRT C I S PIN 19 (RED) M U X RL 8-BIT OFFSET DAC VRB Figure 9. Simplified Block Diagram Showing Fine Offset Adjustment by XRD9827 19. Switch the black target to the enclosed white target. From the CAPTURE menu select SNAP SHOT for a single line scan of the white target. A typical result of a white target is shown below.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 10. White Target Scan Without Gain Adjustment 20. Set the dip switches to [000 00001000] to select the desired gain. Push the Serial Port button. From the CAPTURE menu select SNAP SHOT. The gain should move the output of the CIS to almost full scale. Please refer to data sheet for further gain adjustment and optimal values of dip switches for your scanner.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 11.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY XRD9827 VDD VRT C I S PIN 19 (RED) M U X RL PGA 6-BIT GAIN REGISTER VRB Figure 12. Simplified Block Diagram Showing Gain Adjustment by XRD9827 21. Once the XRD9827 has been fully calibrated, any target can be scanned. For example: Scan a gray scale to demonstrate the stair step response or a color target for color responsitivity.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 13. Gray-scale Target Scan 22. To demonstrate the noise component is contributed from the CIS, we hooked up a DC reference to the scanner and the results are shown below in Table 1. REFERENCE DC (V) STANDARD DEVIATION SYSTEM SNR (dB) W/O CIS NOISE COMPONENT 2.0 2.5 3.0 3.5 2.144328 3.48261 2.399188 1.983461 62.6117 58.3988 61.6356 63.28842 Table 1.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY Figure 14. Plot of 3.5V DC Source as Input to the XRD9827REF Important: 1. If at any time an unexpected result is shown or the demo system seems to not working, please pull the AC adapter out from the wall outlet to cycle power. Start the procedures again from Step 11. 2. Keep the scanner away from other electrical equipment, power cords, light dimmers, etc.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY DVDD U1 C1 C2 0.1uF 0.01uF AVDD 15 C3 C4 1uF 0.1uF CISOUT VREF+ 1 DVDD 10 DGND AVDD C6 0.1uF 0.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY U4 2 21 42 44 63 84 DVDD 77 S1 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 76 S2 S1 S0 D7 D6 D5 D4 D3 D2 D1 D0 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.
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... the analog plus compa TM EXAR Corporation 48720 Kato Road, Fremont, CA 94538 Phone (510)-668-7000, Fax (510)-668-7030 PRELIMINARY U6 7 8 10 11 12 13 14 15 DB0 DB1 DB2 DB3 DB4 DB5/SCLK DB6/SDATA DB7/LD DVDD 29 28 27 26 RS* WEN1* WCLK WEN2* WCLK2 24 23 22 21 20 19 18 17 16 LSB Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 PAF* PAE* REN1* RCLK REN2* OE* EF* FF* DVDD O7 O6 O5 O4 O3 O2 O1 O0 STROBE J2 STROBE O0 O1 O2 O3 O4 O5 O6 O7 9 GND CY7C4261 30 31 32 1 2 3 4 5 6 DVDD C21 0.1uF 7 8 10 11 12 13 C22 0.