![](/images/new-backgrounds/1265353/2653537x1.webp)
XRD9829REF
VIN0 VIN1 VIN2 VIN3
+ | |
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> | |
|
|
|
REGISTER |
| 10 | DATA | 5 |
RL |
|
| |
| OUT | DB4:0 / DB9:5 | |
| ADC | ||
| PORT | ||
|
|
| |
|
|
| DGND |
| Power |
| AVDD |
| Down |
|
|
|
|
| AGND |
AGND
CIS/CCD
VRT
CIS
CCD
AGND | |||
8 | O<7:0> |
|
|
|
| ||
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
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
8.Follow the instructions to finish software installation
Rev. 1.00
4