Product category: Communications ICs (Wireless)
News Release from: Cambridge Silicon Radio | Subject: BlueCore7
Edited by the Electronicstalk Editorial Team on 04 June 2008
New-generation Bluetooth takes GPS
onboard
BlueCore7 significantly reduces the power, size, cost and complexity of adding multiple radios into a mobile phone.
CSR has unveiled the seventh generation of its BlueCore silicon with the world's first device integrating Bluetooth v2.1+EDR, Bluetooth low energy, eGPS (enhanced Global Positioning System), and FM transmit and receive technologies on a single chip CSR's BlueCore7 significantly reduces the power, size, cost and complexity of adding multiple radios into a mobile phone and demonstrates the company's continued expertise in embedded wireless technologies
This article was originally published on Electronicstalk on 24 Aug 2001 at 8.00am (UK)
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CSR has integrated Bluetooth low energy, eGPS and FM Tx and Rx technologies into BlueCore7 alongside an enhanced Bluetooth v2.1 + EDR radio which delivers +10dBm Tx and - 91dBm Rx.
These enhancements help BlueCore7 to extend the overall range and across-body performance to provide better audio quality (think handset on one side of the body and headset on diagonally opposing ear).
BlueCore7 includes CSR's proprietary AuriStream voice codec, which produces the quality of a fixed line call, when using a Bluetooth connection, and is capable of a 30% reduction in power consumption.
Further reading
Flash memory is optimised for Bluetooth
Cambridge Silicon Radio and Fujitsu have been working together to develop Flash memory optimised for Bluetooth requirements.
Development kit gains more Bluetooth software
The CompactSira development kit from Cambridge Silicon Radio now comes with a sample CD of Rappore's Bluetooth host protocol stack, profiles and My Wirefree Network user interface.
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The Bluetooth Voice Box from Uniwill Computer Corp is Bluetooth-enabled by CSR's BlueCore single-chip Bluetooth solution.
Inbuilt speaker drivers also allow users to connect headphones directly to the device.
Bluetooth is the most successful short-range wireless technology in use today, with attach rates in handsets expected to reach 55-60% in 2008.
By integrating more wireless technologies into its Bluetooth subsystem, CSR delivers a powerful connectivity centre that enables designers to increase functionality of their end products without impacting the sise or the bill of materials (BOM).
CSR's wireless connectivity value centre within a handset is the ideal place to integrate new technologies including GPS and FM transmit.
BlueCore7 is a low cost robust solution to allow designers to incorporate must-have functionality quickly and easily, allowing faster times to market.
In April, CSR gave the world's first public demonstration of Bluetooth low energy technology.
Bluetooth low energy (previously known as Ultra Low Power Bluetooth or Wibree) uses fewer frequencies to make connections while retaining the proven robustness of Bluetooth.
This means BlueCore7 with Bluetooth low energy takes less time to connect than conventional Bluetooth and results in lower power consumption when connectable.
Because of its small incremental impact in terms of silicon area, power requirements and the simplicity of the technology itself, Bluetooth low energy opens a whole new class of connectivity options for Bluetooth across a wide range of product segments whilst benefiting from the mass adoption of Bluetooth, the highly interoperable parent technology.
Demonstrated by CSR at this year's Mobile World Congress, CSR's eGPS technology is a revolutionary approach in making location based technologies a viable proposition for mobile handsets.
By sharing resources with the Bluetooth radio and leveraging memory and processing already available on the host platform, CSR has reduced the cost and made significant power and performance improvements necessary for embedding GPS functionality into a mobile handset.
Current GPS technologies only meet the basic needs of consumers and regulatory requirements.
CSR's eGPS provides users with faster and more accurate position information, on demand and in all environments - even deep indoors.
By integrating a transmit and receive FM radio with Bluetooth, handset designers can offer these features using less space, fewer components and of course at a lower cost.
BlueCore7 allows the Bluetooth and FM radios to work without interference, either independently or together to allow users to stream FM radio from a handset to a pair of Bluetooth headphones.
CSR's FM receiver boasts -110dBm of sensitivity, securing high quality FM reception even in difficult environments.
To overcome the challenges of using a handsets internal FM antenna the FM transmitter has a uniquely high maximum output power of +4.5dBm.
Matthew Phillips, Senior Vice President of CSR's Mobile Handset Connectivity strategic business unit commented: "BlueCore7 is a truly intelligent new architecture that integrates more wireless technologies on a single chip than any other product on the market".
"Building on our strengths in Bluetooth and our expertise in embedded wireless technologies, BlueCore7 delivers a robust and comprehensive solution that boasts the industry's leading power and performance figures".
Phillips continued: "We have seen high demand from our customers for Bluetooth, GPS and FM functionality, coupled with an industry need to keep cost, size and power consumption of embedding such technologies to a minimum".
"CSR's core focus is and always has been in embedded wireless connectivity and due to customer demand we have now developed a connectivity centre that reduces the complexity of integrating multiple radios into mobile phones and other consumer portable electronic devices".
BlueCore7 is available in QFN and WLCSP packaging and will be in volume production from Q4 2008.
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