Product category:
Reference Designs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: MSP-TRF7900-EVM
Edited by the Electronicstalk Editorial
Team on 02 December 2005
Kit points the way to wireless mouse
design
Texas Instruments and Cypress Semiconductor have produced a power-optimised wireless mouse reference design kit with a 27MHz dual-channel receiver.
Texas Instruments and Cypress Semiconductor have produced a power-optimised wireless mouse reference design kit with a 27MHz dual-channel receiver Enabled by low-power, highly -integrated and easy-to-use integrated circuits and an optical sensor, the kit allows designers to develop and quickly take to market a complete wireless mouse and receiver system, while reducing component count, system power consumption and cost
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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"Demand for wireless mice and keyboards is exploding, and OEMs require high-performance components and easy-to-use resources to enable rapid development of differentiated products at the right price point", said Kambiz Hayat-Dawoodi, Manager of TI's Low-Power Wireless products.
"TI's new dual-channel receiver, the TRF7900, integrates more than 20 discrete components into a small form factor to reduce cost and simplify receiver design while offering designers the flexibility to select from more frequencies than previously available with single-channel receivers".
The receiver system incorporates TI's TRF7900 dual-channel receiver and a Cypress Encore (enhanced component reduction) microcontroller (MCU) (CY7C63743) to receive the transmit information from the mouse, decode it and communicate the mouse movements and switch selections to the personal computer via a Universal Serial Bus interface.
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"The Encore low-speed microcontroller is a perfect partner to TI's TRF7900 dual-channel receiver for the growing wireless mouse business", said Steven Larky, Director of Cypress's Personal Communications Business Unit.
"The Encore technology eliminates the need for an external crystal oscillator, and integrates other external components commonly found in low-speed applications, such as pull-up resistors, wake-up circuitry and a 3.3V regulator".
"This integration enables the reference design to provide a low-cost, small form factor and simple 27MHz receiver design".
The mouse design optimises power consumption and maximises battery life using a low-power optical mouse sensor (ADNS3040) from Agilent Technologies and TI's ultra-low-power MCU (MSP430F1222).
The MSP430 MCU's hallmark ultra-low-power platform features a typical real time clock standby current of 0.7uA and a shutdown mode of 0.1uA that lets engineers tune system clocking to precisely meet the application's power requirements.
The 27MHz Wireless Receiver and Mouse EVM and Reference Design (MSP-TRF7900-EVM) including mouse, component samples and CD-ROM with complete code, bill of materials and technical documents is available now, priced at $199 per kit.
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