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Bluetooth chip tips
Posted: 26 Jan 2011 ?? ?Print Version ?Bookmark and Share

Keywords:Bluetooth? chip? wireless?

Nordic Semiconductor ASA rolls the �Blue nRF8001 low power Bluetooth solution, the first chip in its announced line of Blue Bluetooth low energy products. The device delivers sub 12.5mA peak currents and connected mode average currents as low as sub 12�A (for 1s connection intervals).

Complementing Nordic's existing ULP nRF24Lxx and ANT 2.4 GHz RF product lines with a complete and fully qualified Bluetooth Ver. 4.0 low energy solution, the nRF8001 is a highly integrated wireless connectivity solution supplied in a compact 5mm x 5mm, 32-pin QFN package. Its ultralow power consumption makes the device suitable for space-constrained coin cell battery operated applications that Bluetooth low energy technology was designed to target. These include wireless products and sensors designed to be worn on--or carried close to--the end user's body including mobile phone peripherals such as proximity tags and watches, and sports fitness and health sensors, as well as consumer electronic remote controls, and home and industrial automation devices.

The nRF8001 integrates a DC/DC regulator that, if enabled, can further cut peak currents and average currents by up to 20 percent when running from a coin cell battery source. The nRF8001 is also the first fully qualified Bluetooth v4.0 low energy design to combine the Radio, Link Layer, and Host into one End Product Listing, enabling designers to easily create new Bluetooth end products without any additional listing fees.

The nRF8001 chip makes it as straightforward as possible for designers to add Bluetooth low energy wireless connectivity to existing applications by integrating a complete Bluetooth v4 low energy Radio, Link Layer, and Host stack supporting Peripheral ("slave") role operation, and featuring a simple serial interface supporting external microcontrollers of a designer's own choosing given the individual requirements of their application. The nRF8001 chip also integrates a low tolerance 32kHz RC oscillator that eliminates the need for external 32kHz crystals, a 16MHz crystal oscillator supporting low cost 16MHz crystals, plus an on-chip linear voltage regulator that provides a supply range of 1.9 to 3.6V as an alternative to its integrated DC/DC regulator.

Production samples and a development kit for the �Blue nRF8001 are available now directly from Nordic Semiconductor. General availability through sales distribution partners will start mid-February this year, with volume shipments beginning in March 2011.

- Paul Buckley
EE Times Europe





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