PAW3205DB-TJ3T Datasheet, PDF (3/5 Pages) Pixart Imaging Inc. – LOW POWER WIRELESS MOUSE SENSOR

PixArt Imaging Inc.
PAW3205DB-TJ3T
2. Block Diagram and Operation
Wireless Optical Mouse Sensor
LED
LED
DRIVE
POWER ON
RESET
ADAPTIVE
FRAMERATE
CONTROL
CMOS IMAGE
SENSOR
MOTSWK
SERIAL
SCLK
INTERFACE _SDIO
MOTION/
WAKE UP
SERIAL
INTERFACE
DIGITAL
SIGNAL
PROCESSOR
CONTROL
REGISTER
VDD
VSS
2.1V ~ 3.6V
POWER
VDDA 1.9V REGULATOR
Figure 3. Block Diagram
The PAW3205DB-TJ3T is a high performance and low power 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 PAW3205DB-TJ3T, is used in the
document.
With brand-new LED control technology, adaptive frame rate control (also known as AFC), the mouse sensor
gain extra power saving during mouse moving. The AFC servers position/speed detection and then mapping to
different frame rate. With lower frame rate, it leads to lower power consumption of the mouse sensor and LED.
The mouse sensor is featured with THREE-level AFC which is 2400/1200/800 frame per second.
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
V1.0, May. 2013