PAW3502 Datasheet, PDF (3/10 Pages) Pixart Imaging Inc. – USB OPTICAL MOUSE SINGLE CHIP

PixArt Imaging Inc.
PAW3502
USB Optical Mouse Sensor Single Chip
2. Block Diagram and Operation
LED
Z1
WHEEL
Z2
BL
BUTTON
BM
BR
USB
D+
INTERFACE _D-
LED
DRIVER
Z-AXIS
COUNTER
DEBUNCE
POWER ON
RESET
CMOS
IMAGE
SENSOR
DIGITAL
SIGNAL
PROCESSOR
USB MOUSE CONTROLLER
OSCILLATOR
VDD5V
VSS
5V
POWER
VDDA
VDDQ
VOLTAGE
REFERENCE
OSCIN
OSCOUT
24 MHZ
RESONATOR
Figure 3. Block Diagram
The PAW3502 supports X, Y, Z three axes, and L, R, M three buttons under USB mode. It is a CMOS process
optical mouse sensor single chip with USB interface that serves as a non-mechanical motion estimation engine
for implementing a computer mouse.
The PAW3502 is in a 14-pin optical package and comes with the resolution of 400/800/1000/1200 counts per
inch (CPI) and the rate of motion up to 28 inches per second. It includes USB interface so that no mouse
controller is needed to interface through USB. The PAW3502 can receive command and echo status or data
format, both complete Universal Serial Bus^® spec V1.1 and USB HID spec V1.1 compatibility. It is also a cost
effective solution to support USB Mouse.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [e-mail]
3
V0.2 Dec. 2006