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ADNS-3080 Datasheet(PDF) 6 Page - AVAGO TECHNOLOGIES LIMITED

Part No. ADNS-3080
Description  High-Performance Optical Mouse Sensor
Download  39 Pages
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Maker  AVAGO [AVAGO TECHNOLOGIES LIMITED]
Homepage  http://www.avagotech.com
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ADNS-3080 Datasheet(HTML) 6 Page - AVAGO TECHNOLOGIES LIMITED

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6
PCB Assembly Considerations
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. Wave Solder the entire assembly in a no-wash solder
process utilizing solder fixture. The solder fixture is
neededtoprotectthesensorduringthesolderprocess.
It also sets the correct sensor-to -PCB distance as the
leadshouldersdonot normallyrestonthePCBsurface.
The fixture should be designed to expose the sensor
leads to solder while shielding the optical aperture
from direct solder contact.
5. Place the lens onto the base plate.
Customer supplied base
plate with recommended
alignment features per
IGES drawing.
ADNS-2120 (Lens)
Customer supplied PCB
ADNS-3080 (Sensor)
ADNS-2220 (Clip)
HLMP-ED80-XX000 (LED)
Figure 6. Block diagram of ADNS-3080 optical mouse sensor
IMAGE
PROCESSOR
REFERENCE
VOLTAGE
FILTER NODE
3.3 V POWER
REFB
REFC
GND
RESONATOR
OSC_IN
OSC_OUT
MOSI
NCS
SCLK
OPTP
VDD3
MISO
LED_CTRL
RESET
NPD
CTRL
OSCILLATOR
6. Remove the protective kapton tape from optical
aperture of the sensor. Care must be taken to keep
contaminants from entering the aperture. During
mouse assembly process, it is recommended that the
PCB is held vertically when kapton tapes are being
removed.
7. 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.
8. 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.
9. Install mouse top case. There MUST be a feature in the
top case to press down


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