High-end headphone performance at entry-level prices

BlueTunes ROM is based on CSR's highly integrated BlueCore5-Multimedia device. This incorporates a 24-bit Kalimba DSP core with a RISC processor, stereo CODEC, Bluetooth 2.1 radio and integrated battery charger.

CSR's headphones design uses the 8x8 mm QFN packaged version of BlueTunes ROM and just a few additional components. This offers significant component savings compared with previous Flash-based solutions. Key features of BlueTunes ROM include:

  • SBC and MP3* decoding
  • Configurable audio 5 band EQ
  • FastStream (low latency CODEC) for video and gaming applications
  • Support for A2DP 1.2, RCP 1.0, HSP 1.0 and HFP 1.5 Bluetooth profiles including 3-way calling
  • CVC echo and noise reduction algorithm
  • Very low power consumption
  • Superior audio quality (SNR= 95dB, THD+N = 0.008%)
  • Best-in-class RF performance (receive sensitivity -90 dBm, transmit power +8dBm)
  • User-configurable voice and music settings

BlueTunes ROM sets a new performance versus cost standard for Bluetooth enabled wireless stereo solutions for music. The design is an ideal platform for building versatile headphones or speakers to support mobile phones, portable media players, and headphones for handheld gaming devices.

* Supply of this product does not convey a license under the relevant intellectual property of Thomson and/ or Frauhofer Gesellschaft nor imply any right to use this product in any finished end user or ready-to-use final product. An independent license for such use is required. For details, visit http://www.mp3licensing.com.