25

Shutter_Upper Address: 0x07

Access: Read

Reset Value: 0x00

Bit

7654321

0

Field

Shutter_Lower Address: 0x08

Access: Read

Reset Value: 0x64

Bit

7654321

0

Field

Data Type: Sixteen bit unsigned integer.

USAGE: Units are clock cycles. Read Shutter_Upper first, then Shutter_Lower. They should be read consecutively. The

shutter is adjusted to keep the average and maximum pixel values within normal operating ranges. The shutter value

is automatically adjusted.

Figure 25. Shutter Values at 800cpi (White Paper)

Figure 26. Mean Shutter vs. Z (White Paper)

Shutter Value (white Paper)

At Z= 0 mm, Circle@7.5" diameter, Speed-6ips

0

10

20

30

40

50

60

70

1

47

93

139 185 231 277 323 369 415 461 507 553 599 645 691

737 783 829 875

Count

Mean Shutter vs. Z (White paper)

800dpi, Circle@7.5" diameter, Speed-6ips

0

50

100

150

200

250

300

350

400

450

1.6

1.8

2.0

2.2

2.4

2.6

2.8

3.0

3.2

Distance of Lens Reference Plane to Surface, Z (mm)

Avg-3sigma

Avg

Avg+3sigma

PixArt Imaging Inc.

ADNS-7530 Integrated Molded Lead-Frame DIP Sensor

All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.

PixArt Imaging Inc.