Preliminary Data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

September 2008

Rev 2

1/30

30

VT5376

Ultra-low power laser motion sensor for laser mouse applications

Features

speed/high accuracy motion detection

(1 m/s, 20 g)

(RUN/IDLE1/IDLE2/SLEEP)

complete autonomous single AA/AAA-type

battery supply application

for battery life saving

high end applications

(report rate up to 1 per ms)

and safety features

operate with a companion microcontroller, and

can be used for any laser/LED mouse system

although it is optimized for wireless

applications (27 MHz/2.4 GHz/BT).

Applications

27 MHz, 2.4 GHz and Bluetooth

Description

This device is intended to fit into any 2-chip

applications (companion MCU) and offers the

best compromise between application cost,

power and performance.

Figure 1.

Application block diagram

VT5376

MCU

SDA

SCL

Motion

Power Down

Single battery

VBat

AVDD

DVDD

Buttons

Scroll Wheel

Tilt Wheel

ResetOut

VGATE Start

VGATE On

VTOP

VTOP

Laser Out

Vtop

Laser NEN

RC_OSC

VREG

(>=2.2V)

Vtop

VREF

RF module

/ USB

RBIN

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