CSR launches fourth generation of its Bluetooth silicon, designed for Enhanced Data Rate (EDR) Bluetooth

June 8, 2004

2 Min Read

CAMBRIDGE, U.K. -- CSR PLC (LSE: CSR.L) today launched a fourth generation of its Bluetooth silicon, designed for Enhanced Data Rate (EDR) Bluetooth which is being officially launched today by the Bluetooth Special Interest Group (SIG) at WiCon World, Amsterdam, Netherlands. CSR's BlueCore4 will deliver data rates which are three-times faster than current v1.2 Bluetooth devices, as well as lower power consumption for Bluetooth mobile phones or headsets. BlueCore4 is sampling now with major OEM customers.

Bluetooth EDR offers maximum data transfer rates of 2.1 Megabits per second (Mbps) compared to the current 721 Kilobits per second (kbps) for v1.2 standard rate. This increase in transfer rate also means that, for a given amount of data, the EDR radio will be active up to 3 times less than a v1.2 radio, hence reducing power consumption, which greatly benefits battery-dependent mobile devices.

CSR BlueCore4 is fully backwards compatible with existing Bluetooth v1.1 and v1.2 devices. Bluetooth EDR achieves its higher data rates by using a Phase Shift Keying (PSK) modulation scheme in place of the Gaussian Frequency Shift Keying (GFSK) of standard rate. This allows more bits to be transmitted in each symbol of the packet-payload when it is sent over the radio link. However, the symbol rate is still 1 Megasymbol per second; the packet timing and structure are the same; the spectral characteristics of transmissions are virtually unchanged; and support for both modulation schemes is mandatory for all EDR capable products. Together, these characteristics provide excellent backward compatibility with Bluetooth v1.1 and v1.2. The new generation further improves on CSR's best-in-class reputation for the ease with which its Bluetooth solutions can be incorporated into circuits and end products.

Glenn Collinson, Sales Director and co-founder of CSR, commented, "Power is a critical issue for mobile device manufacturers looking to boost the functionality of their products with wireless technologies such as Bluetooth. With data rates three times that of standard rate, CSR's Bluecore4 makes it even easier for designers to maximise battery life in their products." Collinson continued, "Put simply, BlueCore4 will make it possible for designers exploit new potential applications of Bluetooth EDR with the minimum possible investment in new hardware and software and the fastest possible time-to-market."

CSR plc

Subscribe and receive the latest news from the industry.
Join 62,000+ members. Yes it's completely free.

You May Also Like