PAN101BOI-208 PIXART [Pixart Imaging Inc.], PAN101BOI-208 Datasheet - Page 11

• Manufacturer Part Number: PAN101BOI-208
• Description: CMOS OPTICAL NAVIGATION SENSOR
• Manufacturer: PIXART [Pixart Imaging Inc.]

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6. Quadrature Mode
The quadrature state of the PAN101B 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. PAN101B support 400cpi, 800cpi, two types of resolution. The following diagrams
show the timing for positive X motion, to the right or positive Y motion, up.
6.1 Quadrature Output Timing
PixArt Imaging Inc.
PAN101B
FOUR
FOUR
FOUR
FOUR
THREE
THREE
THREE
THREE
TWO
TWO
TWO
TWO
ONE
ONE
ONE
ONE
Figure 9. Quadrature Output Timing
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XA/YA
XB/YB
XA/YA
XB/YB
XA/YA
XB/YB
XA/YA
XB/YB
83.3us
83.3us
83.3us
333.3us @ 3000frames/second
83.3us
83.3us
333.3us
83.3us
250us
CMOS Optical Navigation Sensor
166.7us
83.3us
X motion to the right
Y motion up
.
V1.4, FEB. 2003
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