ADNS-8020 Datasheet | PixArt

Description The ADNS-8020 is the Track-on-Glass Laser navigation sensor empowered by Pix Art Imaging that enables navigation on all surface types including glass. It is capable of sensing mouse motion with velocities up to 30 inches per second (ips) on non-glass surfaces, 10 inches per second (ips) on glass and acceleration up to 8g. The ADNS-8020 has dual power supplies of 1.8V and 3.0V, which enables wireless application to lengthen battery life. It integrates both sensor and VCSEL chips in a single 16-pin molded lead-frame DIP package. It is designed to be used with ADNS-8100-002 lens to form a plete laser illuminated navigation system. These parts provide a plete and pact navigation system without moving parts and laser calibration process is NOT required in the plete mouse form, thus facilitating high volume assembly. Performance is not guaranteed if the ADNS8020 sensor is paired with a lens other than the ADNS8100-002. Additionally, performance is not guaranteed if the ADNS-8100-002 lens is used in conjunction with a different navigation sensor other than the ADNS-8020. Theory of Operation The sensor is based on Track-on-Glass and Laser technologies, which measure changes in position by optically acquiring sequential 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 illumination system provided by the VCSEL. 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 data information from the sensor serial port, then translates the data into USB or RF signals before sending them to the host PC or game console. Features - Track on Glass and Laser technologies - 16-pin molded lead-frame DIP package with...