ADNS-5020 Avago Technologies US Inc., ADNS-5020 Datasheet - Page 5

• Manufacturer Part Number: ADNS-5020
• Description: Optoelectronic Miscellaneous, Other
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-5020

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 5. Exploded view drawing.
5
PCB Assembly Considerations
1.
2.
3.
4.
5.
6.
7.
Insert the sensor and all other electrical components into PCB.
Insert the LED into the assembly clip and bend the leads 90 degrees.
Insert the LED clip assembly into PCB.
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.
Place the lens onto the base plate.
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.
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.
CUSTOMER SUPPLIED BASE PLATE
WITH RECOMMENDED ALIGNMENT
FEATURES PER IGES DRAWING
ADNS-5200 (LED CLIP)
SENSOR
8.
9.
REGO
Figure 6. Block diagram of ADNS-5020 optical mouse sensor.
VDD5
GND
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.
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.
HLMP-ED80 (LED)
CUSTOMER SUPPLIED PCB
ADNS-5100 (LENS)
ADNS-5020
IMAGE ARRAY
OSCILLATOR
LED DRIVE
DSP
NCS
SCLK
SDIO
NRESET
XY_LED