PixArt Imaging Inc.
ADNS-3090 High-Performance Optical Mouse Sensor
Design considerations for improving ESD Performance
Typical Distance
Creepage
Millimeters
16.0
The flange on the lens has been designed to increase
the creepage and clearance distance for electro-
static discharge. The table below shows typical values
assuming base plate construction per the PixArt
Imaging supplied IGES file and ADNS-2120-001 flange.
Clearance
2.1
For improved ESD performance, the lens flange can be
sealed (i.e. glued) to the base plate. Note that the lens
material is polycarbonate and therefore, cyanoacrylate
based adhesives or other adhesives that may damage the
lens should NOT be used.
Clip
LED
Sensor
PCB
Lens/Light Pipe
Base Plate
Surface
Figure 7. Cross section of PCB assembly
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
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PIXART [ PIXART IMAGING INC. ]
