1999-2 XRD9827TREF USER MANUAL TOSHIBA 36-BIT COLOR SINGLE L

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1999-2 XRD9827TREF USER MANUAL TOSHIBA 36-BIT COLOR SINGLE L

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XRD9827TREF
1999-2
XRD9827TREF USER MANUAL
TOSHIBA 36-BIT COLOR SINGLE LINE SCANNER
Rev. 1.00 EXAR Corporation, 48720 Kato Road, Fremont, 94538 (510) 668-7000 (510) 668-7017
XRD9827TREF
EVALUATION PART LIST XRD9827TREF 36-Bit Color Single Line Scanner XRD9827TREF User Manual SenseIt Software Installation Diskettes XRD9827 Data Sheet Scan Targets (Black, White, Color) FEATURES line scanning functionality XRD9827 with TOSHIBA 600DPI (Contact Image Sensor) Easy with most personal computers through Parallel Port Interface Simple loading Serial Port XRD9827 adjust gain offset Software SenseIt view single line scan Optimized Layout with Four Layers SYSTEM REQUIREMENTS Intel compatible computer with Windows operating system MBytes system memory 25-pin D-shape parallel port receptacles 1/2" floppy disk drive INTRODUCTION XRD9827TREF demo system which includes design with TOSHIBA CIPS218MC600 600DPI Color Contact Image Sensor (CIS). demonstrates interface with EXAR's XRD9827, 12-bit Linear CIS/CCD Sensor Signal Processor output single line scan display offset gain corrected amplitude each three colors. XRD9827TREF designed provide signal path output signals processed, digitized XRD9827 transmitted personal computer. There software algorithms hardware implementations adjust color response. XRD9827TREF board loaded with XRD9827, Altera MAX7128SLC84 FPGA, FIFO SRAMs peripheral circuits CIS. MAX7128, which FieldProgrammable Gate Arrays (FPGA) provides timing signals XRD9827, SRAMs CIS. also programs XRD9827 operate correct mode adjust gain offset values. XRD9827 processes analog output from sensor, level-shifts converts signal into 12-bit digital codes. SRAMs gate digitized data from XRD9827 store data temporarily. Controlled software, SRAMs send data through parallel port connection histograms data displayed monitor using SenseIt software. block diagram XRD9827TREF shown below Figure Rev. 1.00
XRD9827TREF
FIFO SRAM
8-Bit Data
XRD9827 complete linear sensor signal processor single monolithic chip. XRD9827 includes high speed 12-Bit ADC, 6-Bit Programmable Gain Amplifier with gain adjustment 8-Bit programmable input referred offset calibration range Please XRD9827EVAL User Manual board evaluating XRD9827 signal processor chip. simplified functional block diagram XRD9827 shown below your reference.
TOSHIBA CIPS218MC600 600DPI COLOR
Output
XRD9827 6-Bit Nibble
Parallel Port DB25 Connector
Data
FIFO SRAM
INTEL Compatible 8-Bit Data
Control Signals
ALTERA EPM7128SLC84 FPGA Parallel Port Control
Control Signals
Figure Block Diagram XRD9827TREF
Rev. 1.00
XRD9827TREF
Biasing Circuit CANON
AVDD
Power Down
CLAMP
BUFFER
DVDD
VDCREF RL12-BIT DATA PORT
VDCEXT
VREF+ DB7:0
INT/EXT_VDCREF
G<5:0>
DGND
Power Down
6-BIT GAIN REGISTERS DC/AC
AVDD AGND
8-BIT AGND CIS/CCD 8-BIT OFFSET REGISTERS O<7:0>
AGND
TIMING CONTROL LOGIC
SYNCH CLAMP ADCCLK
Figure Simplified Functional Block Diagram XRD9827
OPERATIONAL PROCEDURE routine listed below will first calibrate photo response using XRD9827 optimizing offset gain. After calibration, XRD9827TREF used scan color target show non-color corrected response. (Color correction typically done digital ASIC.)
Rev. 1.00
XRD9827TREF
XRD9827TREF Demonstration Make sure computer powered power adapter disconnected from wall outlet Connect parallel port cable printer port computer Connect power adapter into wall outlet Turn computer activate Windows Loading EXAR Software Load diskette labeled SenseIt Disk into floppy drive Select Start menu program manager choose Inside small pop-up window, type: A:\setup Follow instructions finish software installation
Parallel Port Configurations Confirm parallel port address follows: Select Start Menu, choose Settings, then choose Control Panel From Control Panel window which pops double-click System System Properties window, select Device Manager From Device Manager window, double-click Ports (COM LPT) Double-click Printer Port (LPT1). find please goto Step From pop-up window, select Resources Verify Input/Output Range 0378 037F range correct, clear Automatic Settings check clicking Choose correct address which 0378 default click Re-start computer advised have Printer Port configured your computer, please follow steps listed below: From Control Panel window which pops double-click Hardware From pop-up window, click Next button Select `No' when prompted want Windows search your hardware?', then click Next button Choose Ports (COM LPT), then click Next button Choose Printer Port, then click Next button Make note Input/Output Range Printer Port your computer click will these values later when configure SenseIt software Re-start computer advised
Rev. 1.00
XRD9827TREF
USED
Figure Switches Value [110 01000000] Reset XRD9827
Offset Adjustment With Black Target switches located side panel scanner [110 01000000] shown Figure push Serial Port button which located front panel demo system. This will reset XRD9827. Select Start Menu, choose Programs, then choose SenseIt icon window will shown below. upper window shows plot captured data lower window shows histogram data. Figure shows pop-up window when SenseIt first started. Select SETUP from pull-down menu choose ADDRESS. window that pops type Input/Output Range Printer Port your computer. default setting 378H. Select SETUP again from pull-down menu choose PIXEL NUMBER. pop-up window, type 5148 which number pixels line. Pick black target from flat area. Place XRD9827TREF black target with sensor facing downwards. switches [110 00001100] then push Serial Port button. This configures XRD9827 operate Coupled mode since output signal TOSHIBA similar waveform. From CAPTURE menu select SNAP SHOT simply press CTRL buttons simultaneously) single line scan black target. typical result black target scan shown Figure Rev. 1.00
XRD9827TREF
Figure SenseIt Software Window Before Scanning
Rev. 1.00
XRD9827TREF
Figure Non-calibrated Black Target Scan (Output Codes Below Zero)
Rev. 1.00
XRD9827TREF
XRD9827
CLAMP
(RED)
Figure Simplified Block Diagram Showing XRD9827 with Coupled Configuration
switches [001 01011000] select internal offset fine offset adjustment. Push Serial Port button. From CAPTURE menu select SNAP SHOT. typical result fine offset adjustment shown below. Please notice that black code value moved just above zero.
Rev. 1.00
XRD9827TREF
Figure Black Target Scan After Fine Offset Adjustment
Rev. 1.00
XRD9827TREF
XRD9827
CLAMP
(RED)
8-BIT OFFSET
Figure Simplified Block Diagram Showing Fine Offset Adjustment XRD9827
Switch black target enclosed white target. From CAPTURE menu select SNAP SHOT single lline scan white target. typical result white target shown below.
Rev. 1.00
XRD9827TREF
Figure White Target Scan Without Gain Adjustment
switches [000 00111100] select desired gain. Push Serial Port button. From CAPTURE menu select SNAP SHOT. gain should move output almost full scale. Please refer data sheet further gain adjustment optimal values switches your scanner. typical result white target with gain adjustment shown below.
Rev. 1.00
XRD9827TREF
Figure White Target Scan After Gain Adjustment
Rev. 1.00
XRD9827TREF
XRD9827
CLAMP
(RED)
6-BIT GAIN REGISTER
Figure Simplified Block Diagram Showing Gain Adjustment XRD9827 Once XRD9827 been fully calibrated, target scanned. example: Scan gray scale demonstrate stair step response color target color responsitivity. Important: time unexpected result shown demo system seems working, please pull adapter from wall outlet cycle power. Start procedures again from Step Keep scanner away from other electrical equipment, power cords, light dimmers, etc., stray electrical fields digitized data. Switch unnesscessary light sources place scanner flat image, this prevent stray light from entering sensor disrupt scan.
Rev. 1.00
UNUSED LOGIC
DVDD 0.1uF AVDD DGND 0.1uF AGND 0.01uF 0.01uF
DVDD
Rev. 1.00
VREF+
AGND 100pF CISOUT OPEN AGND SYNC ADCCLK 0.1uF
AVDD
74HC04
0.1uF
74HC04
DGND
74HC04
VDCEX ADCCL CLAM SYNC
DB7/L DB6/SDAT ADB5/SCL
DB7/LD DB6/SDATA DB5/SCLK
XRD982
LM7805-5 AVDD
LM7809-9 0.22uF
0.1uF
POWER CIRCUIT SUPPLY
DVDD OPEN
DIODE
AGND DGND
10uH 470nF
DGND 0.22uF 0.47uF DVDD
POWERJAC
CASE SCANNER HEADER
DGND
Title LM7805-5 Size Date: XRD9827TREF REFERENCE BOARD Document Number XRD9827REF_TOSHIBA Tuesday, December 1998 Sheet
XRD9827TREF
DGND
XRD9827TREF
DB5/SCLK DB6/SDATA DB7/LD
DVDD
DGND
DVDD RS*28 WEN1*27 WCLK26 WEN2* Q823 Q722 PAF* Q621 PAE* Q520 REN1* Q419 RCLK Q318 REN2* Q217 Q116
CY7C4261
DVDD LWCLK
READY STROBE RCLK
DGND DVDD
0.1uF
0.1uF
AVDD
DGND
DVDD RS*28 WEN1*27 WCLK26 WEN2* Q823 Q722 PAF* Q621 PAE* Q520 REN1* Q419 RCLK Q318 REN2* Q217 Q116
CY7C4261
DB25
RESET WEN1 MWCLK
DGND
O[7:0] DGND AVDD
DVDD 0.1uF 0.01uF 0.1uF AGND DGND 74HC04 74HC04 RLED GLED BLED 74HC04 DGND CISCLP CISRST CISCLK 74HC04 74HC04 74HC04 74HC04 Title XRD9827TREF REFERENCE BOARD Size Date: Document Number XRD9827REF_TOSHIBA Tuesday, December 1998 Sheet DGND DGND DGND 0.1uF TOSHIBA CIPS218MC600 10uF DVDD CISOUT
AUTOFD INIT
RESET
74HC04
GLED RLED BLED LEDCA (ANODE) CONNECT CISCLK DGND AVDD DVDD CISOUT
0.1uF
DGND
AGND
Rev. 1.00
XRD9827TREF
DVDD DVDD DVDD
Oscillator
HEADER 0.1uF DGND
SPORTN
DVDD
OE1/INPUT GCLK1 IO10 IO11 IO12 IO13 IO14 IO15 IO16 IO17 IO18 IO19 IO20 IO21 IO22 IO23 IO24 IO25 IO26 IO27 IO59 IO28 IO29 IO30 IO31 IO60
VCCINT1 VCCIO1 VCCIO2 VCCIO3 VCCINT2 VCCIO4 VCCIO5 VCCIO6
DVDD
IO58 IO57 IO56 IO55 IO54 IO53 IO52 IO51 IO50 IO49 IO48 IO47 IO46 IO45 IO44 IO43 IO42 IO41 IO40 IO39 IO38 IO37 IO36 IO35 IO34 IO33 IO32 DGND1 DGND2 DGND3 DGND4 DGND5 DGND6 DGND7 DGND8 DGND9 DGND10
DGND
READY DVDD RESET
HEADER
BLED RLED GLED CISRST DB7/LD DB6/SDATA ADCCLK CISCLK CISCLP DB5/SCLK
DGND
DIP-12 DGND 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K
MWCLK LWCLK WEN1
EPM7128SLC84
SYNC 74HC04 SPORTN
DVDD 10uF 0.1uF 0.1uF 0.01uF 0.01uF 0.01uF 0.01uF 0.1uF RCLK
DGND
Title Size
XRD9827TREF REFERENCE BOARD Document Number XRD9827REF_TOSHIBA Tuesday, December 1998 Sheet
ALTERA7128SLC84 DGND
Date:
Rev. 1.00
XRD9827TREF
NOTICE EXAR Corporation reserves right make changes products contained this publication order improve design, performance reliability. EXAR Corporation assumes responsibility circuits described herein, conveys license under patent other right, makes representation that circuits free patent infringement. Charts schedules contained here only illustration purposes vary depending upon user's specific application. While information this publication been carefully checked; responsibility, however, assumed accuracies. EXAR Corporation does recommend products life support applications where failure malfunction product reasonably expected cause failure life support system significantly affect safety effectiveness. Products authorized such applications unless EXAR Corporation receives, writing, assurances satisfaction that: risk injury damage been minimized; user assumes such risks; potential liability EXAR Corporation adequately protected under circumstances. Copyright 1999 EXAR Corporation Datasheet 1999 Reproduction, part whole, without prior written consent EXAR Corporation prohibited. Rev. 1.00

1999-2 XRD9827TREF USER MANUAL TOSHIBA 36-BIT COLOR SINGLE L

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