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Cambridge Silicon Radio Inc. (CSR) launched its third generation Bluetooth single chip silicon, BlueCore3. The company says it is the first complete implementation of the Bluetooth v1.2 standard, including all optional features.

CSP integrated BluCore3 technology in two recently released products — BlueCore3-Multimedia and BlueCore3-ROM.

BlueCore3-Multimedia is the world's first Bluetooth device to offer a user-programmable DSP, the company says. The device will allow manufacturers to offer new consumer applications such as Bluetooth wireless stereo headphones.

BlueCore3-Multimedia contains an open platform DSP coprocessor particularly suited for enhanced audio applications. It includes a 16-bit stereo audio CODEC with dual ADC and DAC for stereo audio. It also includes integrated amplifiers for driving microphones and speakers.

BlueCore3-Multimedia also implements v1.2's extended synchronous and connection oriented physical link (eSCO) facility for cordless telephony applications. eSCO channels are error checking voice channels, which allow polled retransmissions. BlueCore3-Multimedia is available in LFBGA package.

BlueCore3-ROM's compact size and competitive price makes it particularly suited to mobile handset applications, the company says.

BlueCore3 algorithms allow the page scan interval of Bluetooth to be adapted to that of mobile phones, thus significantly further increasing the battery life of Bluetooth enabled mobile phones. It also uses 18 percent less current compared to previous generations.

BlueCore2-ROM removes the risk of placing code into ROM and is a trusted and reliable product, says the company. The 4 MB ROM is metal programmable, which enables a six-week turn-around from approval of firmware to production samples.

CSR's new ROM solution is now available in very small CSP (chip scale, 4 mm × 4 mm package), as well as BGA and RF Plug and Go packages. The CSP provides the industry's smallest footprint while Plug & Go package integrates matching circuitry such that an antenna may be directly connected to the chip, the company says.
Cambridge Silicon Radio Inc.
www.csr.com