CSR has announced a USB Bluetooth dongle reference design that lets PC users with stereo or mono Bluetooth headphones switch seamlessly between listening to music and taking a VoIP call. The Music'n'Voice (MV) dongle is based on the company's BlueCore3-Multimedia chip with integrated DSP processor and high-quality codec, and requires few external components to implement.
It works with headsets supporting the Hands-Free Profile (HFP) and supports the AVRCP (remote control) and A2DP profiles (Advanced Audio Distribution Profile). The supplied software supports automatic pairing with most Bluetooth headsets and allows auto-reconnection to previously paired headsets at power on.
The dongle can store up to five Bluetooth addresses and is designed to be true plug and play, with no need to install additional software on the PC. When the MV Dongle is inserted into a PC's USB port, the system will recognize it as a sound card, and it will automatically work with popular media player software.
The dongle also supports all major VoIP providers. The dongle user interface (LEDs, button presses) can be configured without code changes so manufacturers will be able to quickly customize a MV Dongle to their own specification.
Availability: The MV Dongle design is available now, including BOM, reference design, SDK, Gerber files, and example hardware.
BlueCore3-Multimedia data sheet (PDF)
CSR, +44 1223 692 689, www.csr.com