RoadTunes development support

The RoadTunes reference design is complete and ready to use, and is supported by a versatile development board. Interfaces and connections to simplify evaluation and prototyping are provided around the Bluetooth core (measuring 10x10 mm).  The software is pre-qualified, giving developers the option to simply register the product to get the Bluetooth certification.

The CVC echo and noise cancellation function is already tuned for automobile use but may be modified by developers using the Parameter Manager tool, without affecting Bluetooth qualification.

CSR will also provide users with the binary source code for the design, for custom applications (call your local CSR office for details).

At the heart of the design is BlueCore5-Multimedia-External. This device integrates a Bluetooth 2.1 + EDR compatible system with a 24-bit DSP core, stereo CODEC with 93 dB SNR, and 18 digital and analog I/O lines. The LFBGA-packaged device interfaces with up to 32 Mbits of external Flash memory.  The device is also available in CSR's 'Plug-n-Go' packaging, which incorporates a balun, filter and matching components, and has a pitch suitable for 2- or 4-layer PCBs.