Canon XRD9829REF user manual Operational Procedure

XRD9829REF

VIN0 VIN1 VIN2 VIN3

4-1	+
MUX
	BUFFER

AVDD

Power

Down

VRT

DVDD VREF+

CLP

			_
V	V
DCEXT		DCREF
	INT/EXT_V		DCREF

MUX SEL DC/AC

PGA		VRB
6	G<5:0>
6-BIT GAIN
REGISTER

	10	DATA	5
RL	10-BIT
		OUT	DB4:0 / DB9:5
	ADC
		PORT
			DGND
	Power		AVDD
	Down
			AGND

AGND

CIS/CCD

VRT

CIS

CCD

8-BIT DAC		AGND
8	O<7:0>
8-BIT OFFSET
REGISTER

CONTROL LOGIC

ADCCLK PDB SCLK SDATA LD

Figure 2. Functional Block Diagram of XRD9829

OPERATIONAL PROCEDURE

The routine listed below will first calibrate the photo response of the CIS using the XRD9829. After calibration, the XRD9829REF can be used to scan any color target to show CIS non-color corrected response. (Color correction is typically done in the digital asic.)

How to Run the XRD9829REF Demonstration:

1.Make sure the computer is powered off and the AC power adapter is disconnected from a wall outlet

2.Connect the parallel port cable to the printer port of the computer

3.Connect the AC power adapter into a wall outlet

4.Turn on the computer and activate Windows 95

Loading EXAR Software

5.Load the diskette labeled ScanIt 1.0 Disk # 1 into the floppy drive

6.Select the Start menu in the program manager and choose RUN

7.Inside the small pop-up window, type: A:\setup

8.Follow the instructions to finish software installation

Rev. 1.00

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