ADNS-7550 Avago Technologies US Inc., ADNS-7550 Datasheet - Page 23

• Manufacturer Part Number: ADNS-7550
• Description: Optical Mouse Sensor,DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-7550

• Mounting Style: Through Hole
• Termination Style: Solder Pin
• Supply Voltage: 5 V
• Operating Temperature Range: 0 C to + 40 C
• Product: Optical
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 516-2180; ADNS-7550

Shutter_Upper
Access: Read
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 24. Shutter Values at 800cpi (White Paper)
Figure 25. Mean Shutter vs. Z (White Paper)
23
Shutter_Lower
Access: Read
Field
Field
600
550
500
450
400
350
300
250
200
150
100
Bit
80
70
60
50
40
30
20
10
Bit
50
0
0
1
1.6
47
93 139 185 231 277 323 369 415 461 507 553 599 645 691 737 783 829 875
S
1.8
S
7
15
7
7
At Z=0mm; Circles Diameter=7.5"; Speed=6ips
2.0
Mean Shutter vs Z (White paper)
Delta from Nominal Focus (mm)
S
2.2
At Z=0mm; Circle Diameter=7.5"; Speed=6ips
S
6
14
6
6
2.4
Shutter Value (White Paper)
S
2.6
5
S
13
5
Count
Address: 0x07
Reset Value: 0x00
5
Address: 0x08
Reset Value: 0x64
2.8
S
3.0
4
12
S
4
4
3.2
S
3
S
11
3
3
Avg-3sigma
Avg
Avg+3sigma
S
S
2
10
2
2
S
S
1
1
9
1
S
S
0
0
8
0