ADNS-3090 Datasheet, PDF (7/38 Pages) Pixart Imaging Inc. – High-Performance Optical Mouse Sensor

PixArt Imaging Inc.
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Design considerations for improving ESD Performance
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.
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.
Typical Distance
Creepage
Clearance
Millimeters
16.0
2.1
Clip
Sensor
Lens/Light Pipe
Base Plate
Surface
Figure 7. Cross section of PCB assembly
LED
PCB
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PixArt Imaging Inc.
E-mail: [e-mail]
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