Baluns for Bluetooth

7 July 2010 Telecoms, Datacoms, Wireless, IoT

Two new ICs from STMicroelectronics allow designers to connect an antenna to a Bluetooth transceiver using a single chip. The BAL-2593D5U and BAL-2690D3U are integrated baluns, used to convert the antenna signal to a balanced pair of signals as required by the Bluetooth transceiver. The ICs comprise integrated passive devices fabricated using ST’s proven IPD-on-glass process, which delivers predictable RF performance.

The BAL-2593D5U is optimised for use with the STLC2500D standalone Bluetooth transceiver and STLC2592/3 combo devices, which implement an FM radio tuner enabling users to listen to radio directly on a Bluetooth headset. The BAL-2690D3U is designed to partner the STLC2690, a Bluetooth/FM-tuner combo that also adds a short-range FM transmitter allowing the user to play stored music through a system such as a car radio.

For more information contact Robin Scholes, Avnet Kopp, +27 (0)11 809 6100, [email protected], www.avnet.co.za

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