EE Product News

Bluetooth Chips Extracted From CMOS Process

With the launch of the Blutonium family, wireless product manufacturers are said to have the very first high-performance Bluetooth radio made using a CMOS process. Two other chips—both baseband processors—are also being introduced to provide complete end-to-end Bluetooth design solutions. The BCM2001 Bluetooth radio includes on-chip RF and modem functionality plus a BlueRF interface, with the chip's architecture said to be optimized to achieve a balance between receiver sensitivity and interference rejection. The latter is considered to be particularly important as the increasingly crowded 2.4-GHz band used by Bluetooth gives rise to higher interference levels. The device also intergrates all filters on-chip and is targeted for use in small portable consumer products. Samples are available now.
As regards the two new baseband processors, the BCM2039 is designed for use in applications needing a standard Bluetooth interface, while BCM2019 is best suited for use where a more flexible interface to the host controller is needed. The BCM2039 comes with integrated memory and packs all of the functions required of a Bluetooth controller, including the protocol stack up to L2CAP. Integrating several interfaces, including USB and high-speed UART, the IC supports point-to-point and multi-point connectivity. Samples of the 100-pin FPBGA are available. Designed to provide a lower-cost baseband solution for systems with processor and memory already present in the host product, the 48-pin PQFP BCM2019 enables baseband software to be upgraded as future versions of the Bluetooth protocol become available.


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