CSR8311 is a product of Qualcomm Technologies International, Ltd.

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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. The CSR8311 provides a system fully qualified to the Bluetooth v4.1 specification for data and voice communications.

CSR8311 Specs


Bluetooth Version

  • Bluetooth 4.1

Bluetooth Technology

  • Bluetooth Low Energy
  • Dual-mode Bluetooth

Maximum Output Power

  • 9.5dBm transmitter

Bluetooth Radio

  • 50Ω
  • -92.5dBm receiver sensitivity

Class Support

  • Class 3
  • Class 2
  • Class 1


USB Version

  • USB 2.0

General Audio

Digital Microphone Input

  • 2 digital mics


Supported Interfaces

  • I²S
  • PCM
  • UART
  • USB 2.0


Package Type

  • QFN
  • 6 x 6 x 0.9 mm 0.5 mm pitch QFN

Package Size

  • 0.5mm Pitch