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Accelerometers meet size, power needs of CE apps

Posted: 15 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:accelerometers? CE applications? market trends?

MMA7361L, MMA7368L, MMA7341L, MMA7331L

Accelerometers are becoming mainstream technology for consumer applications that require low power consumption and advanced motion sensing within a small form factor. Freescale Semiconductor has expanded its low-g triple-axis analog accelerometer product family to address this rapidly emerging trend in consumer electronics. The MMA7361L, MMA7368L, MMA7341L and MMA7331L triple-axis analog accelerometers have tailored features designed to enable motion sensing in mobile phones, HDDs, media players, games and toys.

The MMA73xxL XYZ-axis analog accelerometers provide a self-test diagnostic feature that verifies the accelerometer is in working order at any time before or after it is implemented in design. All four devices are extremely flexible with a selectable 1.5g to 12g range to tackle various sensing functions, such as fall, tilt, motion, positioning, shock and vibration for multifunctional applications.

Consumer designers will find the MMA73xxL accelerometers suitable for use in cellphones and portable media devices to provide functions such as tilt scrolling, gaming control, tap to mute and freefall HDD protection. In addition to enabling mobile platforms, the MMA73xxL devices also can be used in consumer applications that require wireless sensing, such as enabling remote control LED lighting for home and industrial automation.

The MMA7361L, MMA7368L, MMA7341L and MMA7331L sensors are already available. The suggested resale price in 10,000-piece quantities starts at $2.71 for all three devices.

Development tools also are available for these new sensors. The KIT3376MMA7361L, KIT3376MMA7368L, KIT3376MMA7341L and KIT3376MMA7331L development kits are priced at $35 each. Freescale also offers the ZSTAR2 kit (orderable tool number RD3473MMA7360L), which is the wireless triple-axis successor to the popular ZSTAR. ZSTAR2 includes a background debug mode (BDM) header for on-board programming. It is available at a suggested resale price of $99.





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