PAW3702DL-TXNT Datasheet, PDF (19/33 Pages) Pixart Imaging Inc. – 3in1 SOC Low Power 2.4GHz Wireless Optical Mouse

PixArt Imaging Inc.
PAW3702DL-TXNT General Datasheet
3in1 SOC Low Power 2.4GHz Wireless Optical Mouse
1.0 Introduction
1.1 Overview
The PAW3702 is a highly integrated IC including 2.4GHz RF, MCU and optical mouse navigation engine. This single chip
solution provides customers ease of manufacturing in designing an optical wireless mouse with minimum number of
components. Moreover when PAW3702 is pairing with PAR2402 2.4GHz Wireless USB Receiver Chip, forming the best
choice of a complete low cost and good performance total solution of Wireless Mouse.
The PAW3702 is housed in a 14-pins iDIP package as CMOS optical 2.4GHz wireless mouse single-chip that serves as a non-
mechanical motion estimation engine for implementing a computer mouse. The XY motion-axes support various resolution
options of 800/1000/1200/1600/2000 counts per inch (CPI) with motion detection of tracking speed up to 30 inches per
second and acceleration up to 10g. The 8051 microprocessor is the central management to process the optical mouse XY
motion axes and the 6 buttons status from L, M, R, CPI, B4 and B5, then output these data to the baseband modem and
2.4GHz radio transceiver for wireless transmission.
The Figure 1 shows the architecture block diagram of the PAW3702 respectively. Refer to the subsequent chapters for
detailed information on the functionality of the different interface blocks.
8051
Core
Int. SRAM 256B
XTAL
16MHz
RCOSC
32kHz
POR
BOR
PMU
Ext. SRAM 768B
OTP 16KB
HID
Optical Sensor
BB & Modem
Register
GPIO
De-bounce
Timer
Timer0
Timer1
Timer2
WatchDog
Timer
2.4GHz
Radio Transceiver
1.2 Terminology
Term
GND
BiDir
PWM
HID
GPIO
Figure 1. PAW3702 Functional Block Diagram
Ground
Bi-Directional
Pulse Width Modulation
Human Interface Device
General Purpose Input / Output
Description
Version 0.61 | 18 Aug 2016 | A1002AEN
PixArt Imaging Inc. http://www.pixart.com
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