We are pleased to announce that as of August 13, 2015, Qualcomm Global Trading Pte. Ltd., a subsidiary of Qualcomm Incorporated, has completed its acquisition of CSR plc. For more information, please see the press release .

BlueCore® CSR8311 QFN Automotive

CSR8311 is a Bluetooth® v4.1 single-chip radio and baseband IC for automotive applications.

CSR8311’s dual-mode radio enables it to connect to the billions of Bluetooth products already on the market, as well as a new generation of Bluetooth low energy devices.  It supports CSR Wake-on Smart™, enabling the host CPU to be powered down and reducing energy consumption for Bluetooth Smart use cases. When used with CSR Synergy® host software, the CSR8311 provides a system fully qualified to the Bluetooth v4.1 specification for data and voice communications.

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  • Fully qualified Bluetooth v4.1 system
  • Full-speed Bluetooth operation with full piconet and scatternet support
  • Class 1 Bluetooth power level supported
  • High-sensitivity Bluetooth receiver
  • Wideband speech
  • On-chip SBC encoding
  • On-chip balun
  • Low-power selectable 1.2 to 3.6V I/O
  • No external regulators required for USB supply operation
  • Full-speed USB 2.0 interface
  • Integrated I/O and core regulators
  • High-speed UART port (up to 4Mbps)
  • 2 x PCM/I²S digital audio interfaces
  • Support for IEEE 802 ®.11 coexistence
  • Optimized for use on low-cost PCBs
  • 40-lead 6 x 6 x 0.9mm, 0.5mm pitch QFN
  • Green (RoHS compliant and no antimony or halogenated flame retardants)


CSR designed CSR8311 QFN to reduce PCB area and the number of external components, including no requirement for an external balun. This ensures that production costs are minimised.
The device incorporates auto-calibration and BIST routines to simplify development, type approval and production test.

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