VT5376 datasheet(1/30 Pages) STMICROELECTRONICS

部件名	VT5376

功能描述	Ultra-low power laser motion sensor for laser mouse applications

PDF	30 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 30 page

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

■ Ultra-low power performance and high

speed/high accuracy motion detection

(1 m/s, 20 g)

■ Optional on-chip power management scheme

(RUN/IDLE1/IDLE2/SLEEP)

■ On-chip boost-converter controller enables a

complete autonomous single AA/AAA-type

battery supply application

■ Very low quiescent and operating current mode

for battery life saving

■ I2C interface, with fast polling rate capability for

high end applications

(report rate up to 1 per ms)

■ Internal oscillator

■ CPI programmable up to 3200 CPI

■ On-chip ADC for battery level reporting

■ Laser drive circuitry, fault detection scheme

and safety features

■ Versatile usage: the sensor is designed to

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).

■ RoHS (lead-free) package

Applications

■ Ultra-low power wireless laser mouse,

27 MHz, 2.4 GHz and Bluetooth

■ Also suitable for laser USB mouse applications

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

Laser Out

Vtop

Laser NEN

RC_OSC

VREG

(>=2.2V)

Vtop

VREF

RF module

/ USB

RBIN

www.st.com

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