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ADNS-5020-EN Datasheet(PDF) 5 Page - AVAGO TECHNOLOGIES LIMITED

Part No. ADNS-5020-EN
Description  Optical Mouse Sensor
Download  24 Pages
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Maker  AVAGO [AVAGO TECHNOLOGIES LIMITED]
Homepage  http://www.avagotech.com
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ADNS-5020-EN Datasheet(HTML) 5 Page - AVAGO TECHNOLOGIES LIMITED

 
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Figure 5. Exploded view drawing.
PCB Assembly Considerations
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 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.
5. Place the lens onto the base plate.
6. Remove the protective kapton tape from optical
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.
7. Insert PCB assembly over the lens onto the base plate
aligning post to retain PCB assembly. The sensor
aperture ring should self-align to the lens.
Figure 6. Block diagram of ADNS-5020-EN optical mouse sensor.
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 onto
the PCB assembly to ensure all components are
interlocked to the correct vertical height.
ADNS-5100 (LENS)
CUSTOMER SUPPLIED PCB
HLMP-ED80 (LED)
ADNS-5200 (LED CLIP)
SENSOR
CUSTOMER SUPPLIED BASE PLATE
WITH RECOMMENDED ALIGNMENT
FEATURES PER IGES DRAWING
IMAGE ARRAY
DSP
OSCILLATOR
LED DRIVE
REGO
GND
VDD5
NCS
ADNS-5020-EN
SCLK
SDIO
NRESET
XY_LED


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