PAW3501UI Datasheet, PDF (3/14 Pages) Pixart Imaging Inc. – USB OPTICAL MOUSE SENSOR SINGLE CHIP

PixArt Imaging Inc.
PAW3501UI
USB Optical Mouse Sensor Single Chip
2. Block Diagram and Operation
LED
SR
CPI
DT
WHEEL
Z1
Z2
BL
BM
BUTTON
BR
B4
B5
USB
D+
INTERFACE _D-
LED
DRIVER
SR CTRL
CPI CTRL
DT CTRL
Z-AXIS
COUNTER
DEBUNCE
POWER ON
RESET
CMOS
IMAGE
SENSOR
DIGITAL
SIGNAL
PROCESSOR
USB MOUSE CONTROLLER
OSCILLATOR
VDD5V
VSS
VSSLED
5V
POWER
VREFA
VREFB
VDDQ
VOLTAGE
REFERENCE
OSCIN _{18 MHZ}
OSCOUT RESONATOR
Figure 3. Block Diagram
PAW3501UI supports X, Y, Z three axes, and L, R, M, B4, B5 five 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.
PAW3501UI is in a 24-pin optical package and comes with the resolution of 400/600/800 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. PAW3501UI 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.
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PixArt Imaging Inc.
E-mail: [e-mail]
V2.1 April. 2008