Electronic Design
Optical Joystick Chip Enables Low-Power Navigation

Optical Joystick Chip Enables Low-Power Navigation

Groomed for price- and power-sensitive consumer portables, the VD5376 controller IC for optical joysticks/optical-finger-navigation modules enables longer battery life. The device contains all the features necessary to manage an OFN module and is supplied as a bare die that can be easily incorporated into next-generation modules. Features include a highly sensitive and reliable imaging array for detecting finger movement as well as driver circuitry for the light source. The chip is compatible with laser, infrared, or optical LEDs, thereby maximizing flexibility for module builders. In addition, advanced power-management capabilities contribute to the device’s low overall power use. Price for the VD5376 as bare die is $0.40 each/100,000. STMICROELECTRONICS, Lexington, MA. (888) 787-3550.


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