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RF/Microwave  

RF circuit gets Bluetooth 4.0 qualification

Posted: 10 Oct 2011     Print Version  Bookmark and Share

Keywords:Bluetooth V 4.0  Master/Slave controller 

EM Microelectronic-Marin SA announces the Bluetooth V4.0 qualification of its EM9301, the latest member of the CoolRF circuits family.

The EM9301 is a single-mode Master/Slave controller optimised for low voltage and low energy systems such as wireless sensors, wireless remote controls and wireless monitoring. With operating supply voltage as low as 0.8V, the circuit allows applications to take advantage of a wide range of common single-cell batteries or energy harvesters such as solar cells, piezo-electric and electro-magnetic elements.

The EM9301 is fully compliant with the Bluetooth V4.0 specification adopted by the Bluetooth SIG. It provides full Bluetooth low energy functionality from the radio up to the host controller interface (HCI).

The EM9301 can be interfaced with any 8-, 16- or 32bit host controller, which allows better cost/performance optimised solutions than comparable products with fully integrated and often overpowered host controllers.

The device offers true low voltage design combined with its ultra-low current consumption. Interfaced with a 8051-based application controller from the market. This CoolRF circuit offers the industry's most energy-efficient solution for a Bluetooth low energy application, according to EM Microelectronic.

EM9301 Bluetooth low energy solutions are tailored for portable applications requiring both low voltage and energy connection types. In receive mode, the circuit requires only 16.5mA peak current from physical to application layer. Under the same operating conditions, competing products consume up to 23mA peak current from physical layer to host interface. With its integrated DC/DC converter, the circuit is capable of operating the RF functions while delivering up to 100mA to an external device. When the Bluetooth low energy connection is not required, the system power budget can be optimised by setting the sleep or idle mode in which the circuit itself consumes less than 1.0uA.

To fit the single-mode Bluetooth low energy applications, the EM9301 companion chip offers a system solution providing flexible power management, while running from a single supply. The total system cost remains low as the bill-of-material (BOM) can be limited to only few basic external passive components.

Samples and development kits for the EM9301 are now available.





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