PAN101BOI-208 PIXART [Pixart Imaging Inc.], PAN101BOI-208 Datasheet - Page 3

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

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PixArt Imaging Inc.
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2. Block Diagram and Operation
The PAN101B is a low cost CMOS-process optical navigation sensor with DSP integration chip that
serves as a non-mechanical motion estimation engine for implementing a computer mouse. It is based on
optical navigation technology, which measures changes in position by optically acquiring sequential
surface images (frames) and mathematically determining the direction and magnitude of movement. The
sensor is in a 20 pin optical package. The output format is two-channel quadrature (X and Y direction),
which emulates encoder phototransistors. The current X and Y information are also available in registers
accessed via a serial port.
PixArt Imaging Inc.
PAN101B
QUADRATURE
OUTPUTS
SERIAL
INTERFACE
Figure 3. Block Diagram
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VSS_LED
LED
SCLK
SDIO
XA
XB
YA
YB
INTERFACE
SERIAL
DRIVE
LED
CONTROL REGISTER
PROCESSOR
POWER ON
DIGITAL
SENSOR
SIGNAL
IMAGE
CMOS
RESET
CMOS Optical Navigation Sensor
OSCILLATOR
VDDD
VDDA
VSSD
VSSA
VAY
VRB
VRT
OSCOUT
OSCIN
PD
.
V1.4, FEB. 2003
VOLTAGE
REFERENCE
3V
POWER
RESONATOR
3