Description
The ADNS-2051 is a low cost optical sensor used to implement a non-mechanical tracking engine for computer mice.

Features
• Precise optical navigation technology
• No mechanical moving parts
• Complete 2D motion sensor
• Serial interface and/or quadrature interface
• Smooth surface navigation
• Programmable frame speed up to 2300 frames per sec (fps)
• Accurate motion up to 14 ips
• 800 cpi resolution
• High reliability
• High speed motion detector
• No precision optical alignment
• Wave solderable
• Single 5.0 volt power supply
• Shutdown pin for USB suspend mode operation
• Power conservation mode during times of no movement
• On chip LED drive with regulated current
• Serial port registers
    – Programming
    – Data transfer
• 16-pin staggered dual inline package (DIP)

Applications
• Mice for desktop PCs, workstations, and portable PCs
• Trackballs
• Integrated input devices