PixArt Imaging Inc.
ADNS-3090 High-Performance Optical Mouse Sensor
Enabling the SROM
Regulatory Requirements
PassesFCCBandworldwideanalogousemissionlimits
whenassembledintoamousewithshieldedcableand
following PixArt Imaging’recommendations.
For best tracking performance,SROM is required to
be loaded into ADNS-3090. This architecture enables
immediate adoption of new features and improved per-
formance algorithms. The external program is supplied
by PixArt Imaging as a file which may be burned
into a programmable device. A micro-controller with
sufficient memory may be used. On power-up and reset,
the ADNS-3090 program is downloaded into volatile
memory using the burst-mode procedure described in
the Synchronous Serial Port section. The program size
is 1986 x 8 bits.
Passes IEC-1000-4-3 radiated susceptibility level when
assembled into a mouse with shielded cable and fol-
lowing PixArt Imaging’recommendations.
Passes EN61000-4-4/IEC801-4 EFT tests when assem-
bled into a mouse with shielded cable and following
PixArt Imaging’recommendations.
UL flammability level UL94 V-0.
Provides sufficient ESD creepage/clearance distance
to avoid discharge up to 15kV when assembled into a
mouse according to usage instructions above.
Sensor
Lens
2.40
0.094
Object Surface
Figure 9. Distance from lens reference plane to surface
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
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PIXART [ PIXART IMAGING INC. ]
