PixArt Imaging Inc.
PAW3204DB
Wireless Optical Mouse Sensor
2. Block Diagram and Operation
LED
LED
DRIVE
MOTION/
WAKE UP
POWER ON
RESET
VOLTAGE REGULATOR
AND POWER CONTROL
CMOS IMAGE
SENSOR
MOTSWK
VDD
2.5V ~ 2.9 V
POWER
VSS
1.73V ~ 1.87V
POWER
VDDA
SERIAL
INTERFACE
SCLK
SDIO
SERIAL
INTERFACE
DIGITAL
SIGNAL
PROCESSOR
CONTROL
REGISTER
OSCILLATOR
OSC_RES
Figure 3. Block Diagram
The PAW3204DB is a high performance, low power and low cost CMOS-process optical mouse sensor with
DSP integration chip that serves as a non-mechanical motion estimation engine for implementing a wireless
computer mouse. It is based on new 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 mouse sensor is in an 8-pin optical package. The current X and Y information are
available in registers accessed via a serial port. The word "mouse sensor," instead of PAW3204DB, is used in the
document.
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V3.0, Apr. 2008
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
