PixArt Imaging Inc.
PAN101B
CMOS Optical Navigation Sensor
2. Block Diagram and Operation
LED
VSS_LED
LED
DRIVE
POWER ON
RESET
CMOS
IMAGE
SENSOR
QUADRATURE
OUTPUT
QUADRATURE
OUTPUTS
XA
XB
YA
YB
VOLTAGE REGULATOR
AND POWER CONTROL
VDDD
VDDA
VSSD
VSSA
PD
3V
POWER
DIGITAL
SIGNAL
PROCESSOR
VRB
VRT
VAY
VOLTAGE
REFERENCE
SERIAL
INTERFACE
SCLK
SDIO
SERIAL
INTERFACE
CONTROL REGISTER
OSCILLATOR
OSCIN
OSCOUT
RESONATOR
Figure 3. Block Diagram
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.
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.
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V1.4, FEB. 2003
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
