ADNK-2703 Avago Technologies US Inc., ADNK-2703 Datasheet - Page 5

• Manufacturer Part Number: ADNK-2703
• Description: A2700 Reference Design Kit
• Manufacturer: Avago Technologies US Inc.
• Series: -r

Specifications of ADNK-2703

• Main Purpose: Reference Design, Optical Mouse
• Embedded: No
• Utilized Ic / Part: ADNS-2700
• Primary Attributes: -
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

IMPORTANT NOTE: P-bin LED or better is recommended.
Figure 6. Exploded View of Assembly
PCB Assembly Considerations
1. Insert the sensor and all other electrical components
2. Insert the LED into the assembly clip and bend the
3. Insert the LED clip assembly into PCB.
4. Wave solder the entire assembly in a no-wash solder
5. Place the lens onto the base plate.
6. Remove the protective Kapton tape from optical
5
into PCB.
leads 90 degrees.
process utilizing solder fixture. The solder fixture is
needed to protect the sensor during the solder process.
It also sets the correct sensor-to-PCB distance as the
lead shoulders do not normally rest on the PCB surface.
The fixture should be designed to expose the sensor
leads to solder while shielding the optical aperture
from direct solder contact.
aperture of the sensor. Care must be taken to keep
contaminants from entering the aperture. Recommend
not to place the PCB facing up during the entire mouse
assembly process. Recommend to hold the PCB first
vertically for the Kapton removal process.
LED
LED Clip
ADNS-2700 (Sensor)
Customer supplied PCB
ADNS-5100-001
Customer supplied base plate with
recommended alignment features
per IGES drawing
7. Insert PCB assembly over the lens onto the base plate
8. The optical position reference for the PCB is set by the
9. Install mouse top case. There MUST be a feature in
aligning post to retain PCB assembly. The sensor
aperture ring should self-align to the lens.
base plate and lens. Note that the PCB motion due to
button presses must be minimized to maintain optical
alignment.
the top case to press down onto the PCB assembly to
ensure all components are interlocked to the correct
vertical height.