PixArt Imaging Inc.
High-Performance Optical Mouse Sensor
PCB Assembly Considerations
HLMP-EG3E-xxxxx (LED)
ADNS-2220-001 (Clip)
ADNS-3080 (Sensor)
Customer supplied PCB
ADNS-2120-001 (Trim Lens)
Customer supplied base plate
with recommended alignment
features per IGES drawing.
Figure 5. Exploded view drawing
1. Insert the sensor and all other electrical components
into PCB.
2. Insert the LED into the assembly clip and bend the
leads 90 degrees.
3. Insert the LED/clip assembly into PCB.
4. This sensor package is only qualified for wave-solder
process.
5. Wave Solder the entire assembly in a no-wash solder
process utilizing solder fixture. The solder fixture is
needed to protect the sensor during the solder pro-
cess. 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.
6. Place the lens onto the base plate.
7. Remove the protective kapton tape from optical ap-
erture of the sensor. Care must be taken to keep con-
taminants from entering the aperture. During mouse
assembly process, it is recommended that the PCB is
held vertically when kapton tapes are being removed.
8. Insert PCB assembly over the lens onto the base plate
aligning post to retain PCB assembly. The sensor ap-
erture ring should self-align to the lens.
9. The optical position reference for the PCB is set by the
base plate and lens. Note that the PCB motion due to
button presses must be minimized to maintain optical
alignment.
10. Install mouse top case. There MUST be a feature in the
top case to press down.
NCS
OSCILLATOR
Serial Port
SCLK
MOSI
MISO
LED_CTRL
CTRL
RESET
OSC_IN
RESONATOR
OSC_OUT
REFB
VOLTAGE REGULATOR
AND POWER CONTROL
IMAGE
PROCESSOR
REFC
OPTP
NPD
V DD3
GND
3.3 V POWER
REFERENCE
VOLTAGE
FILTER NODE
Figure 6. Block diagram of ADNS-3080 optical mouse sensor
6
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
