ADNK-3533-TN24 Avago Technologies US Inc., ADNK-3533-TN24 Datasheet - Page 4

• Manufacturer Part Number: ADNK-3533-TN24
• Description: Reference Design For ADNS-3530
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNK-3533-TN24

• Main Purpose: Reference Design, Optical Mouse
• Utilized Ic / Part: ADNS-3530
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Details

Mouse Z-wheel and Buttons
Mouse Z-wheel functions are achieved through the use
of buttons. This enables the optical mouse to have small
and slim form, fit and function.
Mouse buttons are connected as standard switches.
These switches are pulled up by the pull up resistors
inside the microcontroller. When the user presses a
button, the switch will be closed and the pin will be
Figure 2. Exploded view drawing of optical tracking engine with ADNS-3530 optical mouse sensor
While reassembling the components, please make sure
that the Z height (Distance from lens reference plane to
surface) is valid. Refer to Figure 3.
Figure 3. Distance from lens reference plane to surface

0.97
0.04
Customers PCB
Lens
Navigation surface
pulled LOW to GND. A LOW state at the pin is interpreted
as the button being pressed. A HIGH state is interpreted
as the button has been released or the button is not
being pressed. Normally the switches are debounced in
firmware for 15-20ms. In this reference design there are
three switches: left, Z-wheel, and right.
ADNS-3530
ADNS-3150-001
Sensor
Customer
Supplied
Base Plate