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PAN3201DH Datasheet(PDF) 12 Page - Pixart Imaging Inc.

Part No. PAN3201DH
Description  LOW POWER CMOS OPTICAL MOUSE SENSOR
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Maker  PIXART [Pixart Imaging Inc.]
Homepage  http://www.pixart.com.tw
Logo PIXART - Pixart Imaging Inc.

PAN3201DH Datasheet(HTML) 12 Page - Pixart Imaging Inc.

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PixArt Imaging Inc.
PAN3201DH
CMOS Optical Mouse Sensor
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission
.
12
PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
V1.0, Mar. 2006
5. Quadrature Mode
The quadrature state of the PAN3201DH tells mouse controller which direction the mouse is moving in. The
output format is two channels quadrature (X and Y direction), which emulates encoder phototransistors. The
DSP generates the ∆x and ∆y relative displacement values that are converted into two channel quadrature
signals. The following diagrams show the timing for positive X motion, to the right or positive Y motion, up.
5.1 Quadrature Output Timing
XA/YA
XB/YB
XA/YA
XB/YB
XA/YA
XB/YB
XA/YA
XB/YB
FOUR
THREE
TWO
ONE
83.3us
83.3us
83.3us
83.3us
83.3us
83.3us
83.3us
333.3us
250us
166.7us
X motion to the right
Y motion up
333.3us @ 3000frames/second
Figure6. Quadrature output timing


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