ADNS-7530

Integrated molded lead-frame DIP Sensor

Data Sheet

Theory of Operation

The ADNS-7530 integrated molded lead-frame DIP

sensor comprises of sensor and VCSEL in a single

package.

The advanced class of VCSEL was engineered by

PixArt

Imaging to provide a laser diode with a single lon-

gitudinal and a single transverse mode. In contrast to

most oxide-based single-mode VCSEL, this class of

PixArt

VCSEL remains within single mode operation over a wide

range of output power. It has significantly lower power

consumption than a LED. It is an excellent choice for

optical navigation applications.

The sensor is based on Laser technology, which

measures changes in position by optically acquiring se-

quential surface images (frames) and mathematically

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 il-

lumination 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

information from the sensor serial port. The microcon-

troller then translates the data into PS2, USB, or RF signals

before sending them to the host PC or game console.

Features

package

life

optimum performance

Compliance

Applications

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PixArt Imaging Inc.