PAN101B Datasheet, PDF (3/24 Pages) Pixart Imaging Inc. – CMOS OPTICAL NAVIGATION SENSOR

PixArt Imaging Inc.
PAN101B
2. Block Diagram and Operation
CMOS Optical Navigation Sensor
LED
VSS_LED
XA
QUADRATURE
XB
OUTPUTS
YA
YB
LED
DRIVE
POWER ON
RESET
CMOS
IMAGE
SENSOR
DIGITAL
SIGNAL
PROCESSOR
VDDD
VDDA
VSSD
VSSA
3V
POWER
PD
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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PixArt Imaging Inc.
E-mail: [e-mail]
V1.4, FEB. 2003