Optical joystick/OFN controller
28 April 2010
Analogue, Mixed Signal, LSI
STMicroelectronics’ new VD5376 is a low-power IC containing all the functions necessary to control an optical finger navigation (OFN) module or optical joystick. When the user moves a fingertip over the surface of the module, the chip measures the tiny movements to produce a corresponding change in cursor position on the screen. The device contains all the features necessary to manage an OFN module, and is supplied as a bare die. Features include a highly sensitive and reliable imaging array for detecting finger movement, as well as driver circuitry for the light source. The VD5376 is compatible with laser, infrared or optical LEDs and its advanced power management capabilities contribute to its low overall power consumption, ultimately resulting in longer battery life for end products.
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