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XRD9829REF

19

Rev. 1.00

Schematics for XRD9829REF

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Содержание XRD9829REF

Страница 1: ...EXAR Corporation 48720 Kato Road Fremont CA 94538 510 668 7000 FAX 510 668 7017 July 1998 2 XRD9829REF USER MANUAL CIS 30 BIT COLOR SINGLE LINE SCANNER...

Страница 2: ...10 bit Linear CIS CCD Sensor Signal Processor to get a single line scan The XRD9829REF is designed to provide a signal path for the CIS output signals to be processed digitized by the XRD9829 and tra...

Страница 3: ...ORT CONTROL DC 1 25V MACH435 CPLD CIS OUTPUT Figure 1 Block Diagram of XRD9829REF The XRD9829 is a complete linear CIS or CCD sensor signal processor on a single monolithic chip The XRD9829 includes a...

Страница 4: ...power adapter into a wall outlet 4 Turn on the computer and activate Windows 95 LoadingEXARSoftware 5 Load the diskette labeled ScanIt 1 0 Disk 1 into the floppy drive 6 Select the Start menu in the p...

Страница 5: ...uter as advised 10 If you do not have a Printer Port configured on your computer please follow the steps listed below a From the Control Panel window which pops up double click on Add New Hardware b F...

Страница 6: ...XRD9829REF 6 Rev 1 00 S 1 S 0 D 5 D 4 D 7 D 6 D 1 D 0 D 3 D 2 1 0 Figure 3 Dip Switches Set to Value 1100010000 to Reset the XRD9829...

Страница 7: ...ERNAL 1 1 VIN3 1 1 VIN3 VDCREF VDCEXT Mode Test 11 X X X DIGITALRESET TEST3 TEST2 TEST1 X XXX0000X 0 NO RESET 0 TEST3 0 TEST2 0 TEST1 1 RESET DISABLED DISABLED DISABLED REGISTERSARE 1 OUTPUT 1 OUTPUT...

Страница 8: ...of Captured Data and the lower window shows the Histogram of data Figure 3 shows the pop up window when ScanIt is first s t a r t e d Figure 4 ScanIt Software Window Before Scanning 14 Select SETUP fr...

Страница 9: ...A typical result of a black target scan is shown below Figure 5 Non calibrated Black Target Scan 16 Set the dip switches to 1000010000 to select the external DC reference for the 1 25V global offset a...

Страница 10: ...XRD9829REF 10 Rev 1 00 Figure 6 Black Target Scan After Global Offset Adjust...

Страница 11: ...xternalResistorLadder 17 Set the dip switches to 0111000000 to select the internal offset DAC for fine offset adjustment Push the Serial Port button From the CAPTURE menu select SNAP SHOT The offset s...

Страница 12: ...XRD9829REF 12 Rev 1 00 Figure 8 Black Target Scan After Global and Fine Adjust...

Страница 13: ...DAC Figure 9 Simplified Block Diagram Showing Fine Offset Adjustment by XRD9829 18 Switch the black target to the enclosed white target From the CAPTURE menu select SNAP SHOT for a single line scan o...

Страница 14: ...e 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...

Страница 15: ...XRD9829REF 15 Rev 1 00 Figure 11 White Target Scan After Gain Adjustment...

Страница 16: ...Gain Register Figure 12 Simplied Block Diagram Showing Gain Adjustment by XRD9829 20 Once the XRD9829 has been fully calibrated any target can be scanned For example Scan a gray scale to demonstrate...

Страница 17: ...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 electric...

Страница 18: ...XRD9829REF 18 Rev 1 00 SchematicsforXRD9829REF Page 1 of 3...

Страница 19: ...XRD9829REF 19 Rev 1 00 SchematicsforXRD9829REF Page 2 of 3...

Страница 20: ...XRD9829REF 20 Rev 1 00 SchematicsforXRD9829REF Page 3 of 3...

Страница 21: ...XRD9829REF 21 Rev 1 00 Notes...

Страница 22: ...XRD9829REF 22 Rev 1 00 Notes...

Страница 23: ...XRD9829REF 23 Rev 1 00 Notes...

Страница 24: ...checked no responsibility however is assumed for in accuracies EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the...

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