ADNS-3090
High-Performance Optical Mouse Sensor
Data Sheet
Description
The ADNS-3090 is a high performance addition to
PixArt
Imaging’
popular ADNS family of optical mouse
sensors.
The ADNS-3090 is based on a new, faster architecture with
improved navigation. The sensor is capable of sensing high
speed mouse motion - up to 60 inches per second and
acceleration up to 20g – for increased user precision and
smoothness.
The ADNS-3090 along with the ADNS-2120-001 trim lens,
ADNS-2220-001 assembly clip and HLMP-EG3E-xxxxx led
form a complete, compact optical mouse tracking system.
There are no moving parts, which means high reliability and
less maintenance for the end user. In addition, precision
optical alignment is not required, facilitating high volume
assembly.
The sensor is programmed via registers through a four-wire
serial port. It is packaged in a 20-pin staggered dual inline
package (DIP).
Features
High speed motion detection – up to 60 ips and 20g
Enhanced architecture for greatly improved optical
navigation technology
Programmable frame rate over 6400 frames per
second
SmartSpeed self-adjusting frame rate for optimum
performance
Serial port burst mode for fast data transfer
1800 cpi or 3600 cpi selectable resolution
Single 3.3 volt power supply
Four-wire serial port along with Chip Select, Power
Down, and Reset pins
Applications
Mice for game consoles and computer games
Mice for desktop PC’s, Workstations, and portable
PC’s
Trackballs
Integrated input devices
Theory of Operation
The ADNS-3090 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.
It contains an Image Acquisition 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 images are processed
by the DSP to determine the direction and distance of
motion. The DSP calculates the Δx and Δy relative dis-
placement values.
An external microcontroller reads the Δx and Δy informa-
tion from the sensor serial port. The microcontroller then
translates the data into PS2 or USB signals before sending
them to the host PC or game console.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
1
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
