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Optoelectronics/Displays??

Optical sensor rolls for mini-mice

Posted: 25 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:optical mouse sensor? optical navigation? optoelectronics? PCB?

Avago Technologies Ltd has made available a series of thin mouse sensors that boasts an integrated chip-on-board LED-illuminated optical navigation system. The small-form-factor ADNB-3532/52 optical sensor bundle with trim lens is a complete mouse-tracking system that can be used with surface-mount technology processes. This series enables designers of optical mice applications to use automated manufacturing processes to increase productivity and provide consistent quality in the production of miniature mice for a variety of computer and consumer applications.

The sensor solutions provider said that the ADNB-3532/52 provides up to 20 inches per second and 8g of high-speed motion detection, an on-chip oscillator and integrated LED to minimize the number of external components required for the design. The series operates from 2.7-3.6V and consists of a low-power architecture and automatic power-management modes. This makes it suitable for use in battery and power-sensitive applications, such as compact travel mice for notebook PCs, optical pen mice and optical trackballs.

The ADNB-3532/52 series is based on optical navigation technology, which measures changes in position by optically acquiring sequential surface images (frames) and mathematically determining the direction and magnitude of movement. Each product contains an image acquisition system (IAS), a DSP and a four-wire support. The IAS acquires microscopic surface images via the lens and illumination systems. These images are then processed by the DSP and determine the direction and distance of motion.

The series is designed to provide different mounting options to the mouse PCB. With dimensions of 12.9-by-9.6-by-3.25mm, the ADNB-3532 comes with solder pads only at the bottom side of the mouse PCB, which does not require a cutout. The ADNB-3552, with dimensions of 12.9-by-12.5-by-3.25mm, has solder pads on both sides of the sensor and can be mounted on either the top with a cutout on the PCB to reduce the overall thickness or on the bottom of the mouse PCB.

Pricing begins at $3.00 each in 10,000-piece quantities.

- Emily Gleason
eeProductCenter




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