PixArt Imaging Inc.

PAW3203DI

Wireless Optical Mouse Single Chip

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PixArt Imaging Inc.

V0.3 April. 2008

2. Block Diagram and Operation

CMOS IMAGE

SENSOR

DIGITAL

SIGNAL

PROCESSOR

POWER ON

RESET

WIRELESS MOUSE CONTROLLER

LED

DRIVER

RFDATA

RFEN

OSCILLATOR

BR

B4

BL

BM

LED

VREF

VDDA

VDD

OSCIN

OSCOUT

RF

INTERFACE

BUTTON

CRYSTAL

1.8V

POWER

B5

Z-AXIS

COUNTER

ZY1

ZY2

WHEEL

VSS

VDDD

EEPROM

CONTROLLER

ISCK

ISDA

RFID

BATTERY

DETECTION

BATLow

Figure 3. Block Diagram

The PAW3203DI is a 27 MHz wireless CMOS optical mouse single chip that serves as a non-mechanical motion

estimation engine for implementing a wireless mouse. PAW3203DI supports X, Y, Z three axes, and L, R, M,

B4, and B5 five buttons.

PAW3203DI is in a 24-pin optical package and comes with the resolution of 800 counts per inch (CPI) and the

rate of motion up to 28 inches per second. PAW3203DI embedded mouse controller in it so that no additional

controller and its component needed.