ADNK-5023-HTP2 Designer’s Kit – Optical Mouse
The ADNK-5023-HTP2 reference design mouse unit
allows users to evaluate the performance of the Optical
Tracking Engine (sensor, lens, LED assembly clip, LED)
over PS/2 connection, using a Holtek Controller. This kit
also enables users to understand the recommended me-
chanical assembly. (See Appendix C, D, and E)
System Requirements
PCs using Windows® 95/ Windows® 98/ Windows® NT/
Windows® 2000/ Windows® XP with PS/2 port.
Compatibility
Microsoft Intelli 3D PS/2 and IBM PS/2 mouse compatible
Functionality
3-button, scroll wheel mouse.
Operating (For PS/2 Mode)
1. Turn off the PC.
2. Plug the mouse unit’s PS/2 connector into the PC’s
PS/2 port.
3 Turn on the PC. All of the mouse buttons and scroll
wheel will function exactly like a standard PS/2 mouse.
To Disassemble the ADNK-5023-HTP2 Unit
The ADNK-5023-HTP2 comprises of the plastic mouse
casing, printed circuit board (PCB), lens, buttons, and PS/2
cable. (See Figure 4.) Unscrewing the one screw located
at the base of the unit can open the ADNK-5023-HTP2
unit. Lifting and pulling the PCB out of the base plate can
further disassemble the mouse unit.
Caution: The lens is not permanently attached to the
sensor and will drop out of the assembly.
Component Summary
Below is the summary of the components contained in
the ADNK-5023-HTP2 Designer’s Kit.
Sensor
The sensor technical information is contained in the
ADNS-5020EN Data Sheet.
Lens
The lens technical information is contained in the ADNS-
5100/5100-001 Data Sheet. The flange on the standard
ADNS-5100 lens is for ESD protection.
LED Assembly Clip
The information on the assembly clip is contained in the
ADNS-5200 Data Sheet.
LED
The LED technical information is contained in the HLMP-
ED80-XX000 Data Sheet.
Base Plate Feature – IGES File
The IGES file on the CD-ROM provides recommended
base plate molding features to ensure optical alignment.
This includes PCB assembly diagrams like solder fixture in
assembly and exploded view, as well as solder plate. See
Appendix D for details.
Reference Design Documentation – Gerber File
The Gerber File presents detailed schematics used in
ADNK-5023-HTP2 in PCB layout form. See Appendix C for
more details.
Overall circuit
A schematic of the overall circuit is shown in Appendix A
of this document. Appendix B lists the bill of materials.
Figure 4. Exploded view drawing of optical tracking engine with ADNS-
5020EN optical mouse sensor.
Note: While reassembling the components, please make sure that the Z
height (Distance from lens reference plane to surface) is valid. Refer to
Figure 4.
ADNS-5200 (LED Clip)
HLMP-ED80 (LED)
Sensor
Customer supplied PCB
ADNS-5100 (Lens)
Customer supplied base
plate with recommended
IGES drawing
alignment features per
Figure 5. Distance from lens reference plane to surface
Sensor
Lens
Lens reference plane
Object Surface
2.40
0.094
Z=
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