Description

The

Pixart ADNS-3050 is a small form factor entry-level

gaming optical navigation sensor. It is housed

in an 8-pin staggered dual in-line package (DIP). It is ca-

pable of high-speed motion detection typically at 60ips

and acceleration up to 20g; suitable for both wired and

wireless gaming navigation system. The low power man-

agement in wireless mode can be customized to suit user

preferences. In addition, it has an on-chip oscillator and

LED driver to minimize external components.

The ADNS-3050 sensor along with the ADNS-5110-001

lens,

trim

LED clip, and HLMP-EG3E

red LED forms a complete and compact mouse tracking

system. There are no moving parts, which translates to

high reliability and less maintenance for the end user.

Precision optical alignment is not required, thus facilitating

high volume assembly.

Theory of Operation

The ADNS-3050 is based on Optical Navigation Technol-

ogy, which measures changes in position by optically

acquiring sequential surface images (frames) and math-

ematically determining the direction and magnitude of

movement. The ADNS-3050 contains an Image Acquisi-

tion System (IAS), a Digital Signal Processor (DSP), and a

four wire serial port. The IAS acquires microscopic surface

images via the lens and illumination system. These im-

ages are processed by the DSP to determine the direction

and distance of motion. The DSP calculates the ΔX and Δy

relative displacement values. An external microcontroller

reads and translates the ΔX and Δy information from the

sensor serial port into PS2, USB, or RF signals before send-

ing them to the host PC.

Features

 Small Form Factor Package - 8-pin DIP

 Operating Voltage: 2.8V-3.0V

 High Speed Motion Detection at typical of 60ips and

acceleration up to 20g.

 Selectable Resolutions up to 2000cpi

 Four wire Serial Port Interface

 External Interrupt Output for Motion Detection

 Internal Oscillator — no clock input needed

 On-chip LED driver

 Minimal number of passive components

 Programmable power-saving modes for selectable

wired or wireless application

 Customizable response time and downshift time for

rest modes

 Configurable LED operating modes and drive current

Applications

 Wired and Wireless Optical gaming mice and trackballs

 Integrated input devices

 Battery-powered input devices

NOTE: The ADNS-3050 sensor is not designed for use with blue

LED navigation system.

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PixArt Imaging Inc.

ADNS-3050 Entry-level Gaming Optical Navigation Sensor

ADNS-3050

Data Sheet