CSR RoadTunes Reference Design

RoadTunes reference design, from CSR, is a feature rich, fully interoperable Bluetooth handsfree package for Personal Navigation Devices (PNDs) and in-car systems. Designed to provide OEMs with a faster time to market, RoadTunes features a less than six-week average integration time and costs only $6. CSR’s RoadTunes is available in packages with external Flash memory, Plug n Go, and Plug n Go AEC-Q100 (automotive qualified package).

RoadTunes Compatibility

  • Speech: Hands-Free or Headset
    Three-way call, last number redial, Memory dial, Mute, DTMF tones, Voice dial
  • Music Streaming and Receiving: A2DP/AVRCP
    Source or Sink, controller or target
  • Phone book: PBAP
    Phonebook/call history download (SIM / memory), Browsing, VCard 2.1/3.0
  • Internet Access: DUN
    Updates via the internet, Surfing the Web, General Internet Access
  • Peripheral Access: SPP
    From keyboard, remote controls and other accessories to host application

CSR’s example design features full hardware and software components, including source code to allow designers to fully customize their end designs. Based on CSR’s BlueCore5-Multimedia silicon, RoadTunes is a low power, fully interoperable design with a powerful RISC and DSP processor. The design incorporates both CSR Clear Voice Capture (CVC) and third party echo cancellation technologies. BlueCore5-Multimedia also features Bluetooth v2.1 for simple pairing and best in class audio CODEC with a signal to noise ratio of -95dB.

CSR RoadTunes Open API

CSR has designed RoadTunes to allow OEMs to integrate Bluetooth connectivity quickly, enabling a faster time to market with an easy Plug-In concept. Incorporating Bluetooth Embedded Control Interface (BECI) guidelines, RoadTunes allows for easy integration via a simple interface/API. With almost no host MIPS required, RoadTunes takes the stress out of incorporating wireless connectivity in embedded and aftermarket automotive devices. The average time to integrate RoadTunes on a device is less than six weeks and does not require prior in-depth Bluetooth experience.

RoadTunes allows the simultaneous pairing of up to eight Bluetooth devices, and controls safely a vast array of functions through numerous voice prompts. As it also offers multiple profile support (including A2DP, AVRCP, HFP, PBAP, DUN and SPP), devices designed around RoadTunes can offer full Bluetooth connectivity including simultaneous audio, remote control of devices and handsfree operation.

More info: CSR RoadTunes