ADNS-2220 Avago Technologies US Inc., ADNS-2220 Datasheet - Page 7

• Manufacturer Part Number: ADNS-2220
• Description: SOLID STATE OPTICAL MOUSE LENS
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2220

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2072083A

Design considerations for improving ESD Performance
The flange on the lens has been designed to increase
the creepage and clearance distance for electrostatic
discharge. The table below shows typical values assum-
ing base plate construction per the Avago Technologies
supplied IGES file and ADNS-2120 lens 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.
Figure 7. Cross section of PCB assembly
7
Base Plate
Surface
Lens/Light Pipe
Sensor
Clip
Typical Distance
Creepage
Clearance
LED
Millimeters
16.0
2.1
PCB