CSR BlueCore7 Bluetooth Chip
CSR (LSE:CSR) recently unveiled BlueCore7, which is their seventh generation BlueCore silicon. BlueCore7 is the 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. BlueCore7 is available in QFN and WLCSP packaging and will be in volume production from Q4 2008.
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 –91 dBm Rx. The 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. Inbuilt speaker drivers also allow users to connect headphones directly to the device.
BlueCore7 Details
- Bluetooth version 2.1
- Bluetooth Tx output power +10dBm
- Bluetooth Rx sensitivity -93dBm
- Process geometry 90nm
- Chip area 11.7 mm2
- External component count (eBOM) 10 or fewer
- Low page scan power 0.45 milliwatts
- AuriStream power (EV3)1 11 milliwatts
- CVSD power (EV3)1 19 milliwatts
- HV3 operating power 18 milliwatts
- Standby power 40 microwatts
More info: CSR BlueCore7
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