Another advantage is support for concurrent reception and scalability benefits when moving from single tuner to multi-tuner concepts. tuneX leverages system memory when a user changes to an alternative radio channel. As soon as two or more standards are received concurrently in a dual or multi tuner design, the signals are available in the software audio buffers and users can blend between channels immediately with no noticeable audio delay.

CSR offers tuneX front-ends or tuneX software demodulators as standalone products or as part of a fully integrated radio package on the newly released CSRatlas7™ platform. CSR can also offer tuneX as a solution working on a third-party platform.

CSRatlas7 Product Details

Key features of the CSRatlas7 (CSRS3703 BGA Automotive):

• Dual-core Cortex A7
• Vehicle Controller Cortex M3
• 8/16-bit DDR3/DDR3L support
• Advanced 3D graphics accelerator
• Full 1080p HD multi-format video decoder
• Bluetooth v4.2 specification
• Software Defined Radio demodulators and accelerator
• Multi-Constellation GNSS engine
• Integrated Audio DSP
• Multi-channel audio codec
• AEC-Q100 grade 3

For a full list of features and benefits of CSRatlas7, see www.csr.com/products/csratlas7.

tuneX Product Details

Key features of the hardware frontend include:

• Three front end variants addressing global multi-standard requirements
  • tuneX AM/FM: AM, FM, WX, DRM and HD
  • tuneX DAB: DAB
  • tuneX Hybrid: AM, FM, WX, DRM, DAB and HD
• tuneX front ends provide a digital data stream
  • Flexible output data interface supporting SDIO / JESD204B / I2S to interface with application processors
  • Unique CSR tuner / SoC SDIO interface results in low pin count
• Low solution cost with minimum external BOM
  • No external tracking and channel select filter, crystal sharing etc.

Key features of the software demodulators include:

• Available software demodulators save NRE costs
  • Rich featured AM / FM / RDS demodulator
  • Fully validated automotive DAB / DAB+ / T-DMB solution
  • iBiquity certified HD Radio™ system (HD1.0, 1.5 + MRC)
• No dedicated, additional DSP – analog and digital software demodulators run on CSR’s Infotainment SoCs
• Open SDR framework
  • The SDR framework is a portable set of software interfaces and components available for CSR SoCs
  • Support of multi-standard receiver instances and runtime demodulator switching for different standards
  • Available for CSR SoCs under Linux and Android