ADNS-3530 Datasheet, PDF (1/25 Pages) Pixart Imaging Inc. – Low Power LED Integrated Slim Mouse Sensor

Data Sheet
ADNS-3530
Low Power LED Integrated Slim Mouse Sensor
Description
Features
The ADNS-3530 LED optical mouse sensor is a small form
factor (SFF) LED illuminated navigation system.
The ADNS-3530 is a low-power optical navigation sen-
sor. It has a new, low-power architecture and automatic
power management modes, making it ideal for battery-
and power-sensitive applications such as cordless input
devices.
The ADNS-3530 is capable of high-speed motion
detection — up to 20 ips and 8 g. In addition, it has
an on-chip oscillator and integrated LED to minimize
external components.
The ADNS-3530, along with the ADNS-3150-001 lens,
forms a complete and compact mouse tracking system.
There are no moving parts which means high reliabil-
ity 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 16 I/O surface mount-
able package.
Theory of Operation
The ADNS-3530 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.
• Low power architecture
• Small form factor
• Surface mount technology (SMT) device
• Self-adjusting power-saving modes for longest
battery life
• High speed motion detection up to 20 ips and 8 g
• Self-adjusting frame rate for optimum performance
• Motion detect pin output
• Internal oscillator – no clock input needed
• Selectable 500 and 1000 cpi resolution
• Wide operating voltage: 2.7 V - 3.6 V nominal
• Four wire serial port
• Minimal number of passive components
• Integrated chip-on-board LED
Applications
• Optical mice
• Optical trackballs
• Integrated input devices
• Battery-powered input device
The ADNS-3530 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
displacement values.
An external microcontroller reads the Δx and Δy infor-
mation from the sensor serial port. The microcontroller
then translates the data into PS2, USB, or RF signals
0before sending them to the host PC or game console.
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PixArt Imaging Inc.
E-mail: [e-mail]