Reference design puts optical mice on USB
An
Avago Technologies product story
Edited by the Electronicstalk editorial team
Feb 8, 2005
Agilent Technologies and Cypress Semiconductor Corp have combined to produce a combination USB-PS/2 reference design kit for high-performance corded optical mice.
Agilent Technologies and Cypress Semiconductor Corp have combined to produce a combination USB-PS/2 reference design kit for high-performance corded optical mice.
The kit gives manufacturers the technical instructions and firmware needed to quickly implement a new optical mouse design.
The optical mouse reference design is based on the Cypress CY7C63743A-PC microcontroller and the Agilent ADNS-3060 optical mouse sensor, which provide superior performance and tracking control compared with previous-generation, LED-based optical mice.
The Agilent ADNS-3060 LED-based optical mouse sensor provides excellent tracking control and high-performance operation for corded optical mice.
The sensor uses a self-adjusting frame rate that automatically matches to surface characteristics for optimum performance.
In addition, the ADNS-3060 offers: 3.3V operation; power-down current consumption of 90uA; a maximum clock frequency of 24MHz; a maximum speed of 40in/s at 6400frame/s; and resolution of up to 800 count/in.
The Cypress CY7C63743A-PC is an 8bit RISC microcontroller with an integrated USB serial interface engine.
High-performance, low-cost human interface peripherals such as optical mice can be implemented with a minimum of external components and firmware effort.
Communication between the CY7C63743A-PC microcontroller and the ADNS-3060 sensor is accomplished through the integrated serial peripheral interface.
The combination USB-PS/2 microcontroller also offers: a 12MHz internal CPU clock; 256byte of RAM; 8Kbyte of EPROM; built-in clock oscillator and timers; and programmable drive strength and pull-up resistors on each I/O line.
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