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VD5377 Fiches technique(PDF) 16 Page - STMicroelectronics

No de pièce VD5377
Description  Ultra-low power motion sensor for optical finger navigation (OFN)
PDF  88 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VD5377 Fiches technique(HTML) 16 Page - STMicroelectronics

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Application schematics
VD5377
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Doc ID 022952 Rev 2
3.2
Cursor orientation
Figure 5 shows the direction of positive motion vectors relative to silicon orientation with the
default power-up register settings: parameters_2 (0x27) = 0x08 that is, invert_x = 0,
invert_y = 0 and swap_xy = 1. An imaging lens is assumed but not shown. The direction of
X/Y motion can be reversed or swapped by writing to register 0x27 allowing preferred cursor
movement from any die orientation.
Figure 5. VD5377 default XY orientation
Y+
X+
Pad 1
Pixel array
Imaging lens not shown



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