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RF solutions deliver reliable automotive capacity

Posted: 22 Aug 2008 ?? ?Print Version ?Bookmark and Share

Keywords:RFIC? TPMS? design? receiver?

Balda Solutions Malaysia has chosen Micrel's MICRF112 and MICRF211 QwikRadio IC technology to be incorporated into its new Tire Pressure Measurement System (TPMS) systems for aftermarket applications.

The system has a minimum of four sensor transmitters (MICRF112) and a receiver display system (RF211). The application monitors the tire pressure and temperature simultaneously and tells the driver whenever any of the tires' pressure or temperature goes beyond its limits. This helps driver to save gas and possible tires' wear-and-tear costs.

"We are happy to have Micrel's RF solutions in our most advanced applications," said Y.M. Leong, director of business development, Balda Solutions. "Our goal is to give our customers cost effective, highly reliable solutions and Micrel's fully integrated IC not only allowed us to eliminate extraneous parts and keep product costs down, but the simple drop-in design provides us to reduce time-to-market. "Micrel's technical support performs well and its RF devices are second to none," Leong added.

The system has an RF link that offers life-saving ability to identify the pressure and temperature of the tires and tells the driver of possible abnormality (e.g. when the tire pressure exceeds preset limit). Along with RF solutions are Micrel's QwikRadio RF transmitter and receiver. Generally, a receiver has an array of tuned parts and their costs are kept to a minimum employing Micrel's fully integrated, single-chip solution. A transmitter is manually activated to deliver a coded signal to the receiver. Micrel's MICRF211 receives the RF signal and converts it to a digital signal. The decoder then interrupts the digital signal to see if an alarm situation has been reached.

"We anticipate TPMS applications to have significant increase in the coming years with the application to help improve automobile safety and increase gas mileage," said John Lee, director of mixed-signal and RF products, Micrel.

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