ADNS-2620 Avago Technologies US Inc., ADNS-2620 Datasheet - Page 26

• Manufacturer Part Number: ADNS-2620
• Description: Optical Mouse Sensor,DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2620

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 516-2238-5; ADNS-2620; Q2073278A

Shutter_Upper
Access: Read
Shutter_Lower
Access: Read
Data Type: Sixteen bit word.
USAGE: Units are clock cycles; default value is 0x0100
Note:
This graph is obtained by getting multiple readings over dif-
ferent heights.

Figure 33. Typical Mean Shutter vs. z
(white paper).
1.50
1.25
1.00
0.75
0.50
0.25
0
-1.0
DISTANCE FROM NOMINAL FOCUS (mm)
They should be read consecutively. The sensor adjusts the shutter to keep the average and maximum
pixel values within normal operating ranges. The shutter value may vary with every frame. Each time
the shutter changes, it changes by ±1/16 of the current value.
Field
Field
Bit
Bit
-0.6
-0.2
S
S
7
7
1
7
0.2
0.6
X
X
X
+
–
3
3
σ
σ
S
1.0
S


1

Address: 0x4A
Reset Value: 0x00
Address: 0x49
Reset Value: 0x01
S
S


1

HEX
. Read Shutter_Upper first, then Shutter_Lower.
S
S


1

S
S


11

S
S


10

S
S
1
1
9
1
S
S
0
0
8
0