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Bluetooth 4.0 module with CSR8635 chip

Bluetooth 4.0 module based on the CSR8635 chip designed for Bluetooth audio applications. The module has a built-in antenna and pins for edge connectors.

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ID: 580926

6,40€ gross (23% VAT)
5,21€ net

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Bluetooth 4.0 module based on the CSR8635 chip. The CSR8635 is an audio platform for wired and wireless applications that integrates an ultra-low power DSP and application processor with built-in flash memory, high-performance stereo codec, power management subsystem, and LED drivers. The CSR configuration tools and development kit provide a flexible and efficient development platform for designing advanced and high-quality stereo products with Bluetooth connectivity. The main area of application of the module are Bluetooth speakers, Bluetooth car kits and headsets. The module has a built-in antenna and pins for edge connectors, which allows for surface mounting of the module in your own design.


  • Compliant with Bluetooth® v4.0 specification
  • 80 MHz RISC MCU and 80 MIPS Kalimba DSP
  • Stereo codec with 1 microphone input
  • Internal ROM, serial flash memory and EEPROM interfaces
  • Efficient stereo codec
  • The radio includes an integrated balun with RF performance with a transmit power of 8 dBm and a receiver sensitivity of -89 dBm
  • AVRCP v1.4
  • 5-band, fully customizable EQ
  • Broadband speech supported by HFP v1.6 and mSBC codec
  • Latest CSR CVC technology for narrowband and broadband voice calls, including noise reduction
  • Multipoint support for A2DP connection with 2 A2DP sources for playing music
  • Secure simple pairing, CSR proximity pairing and CSR proximity connections
  • Stereo line input
  • Serial interfaces: USB 2.0, UART, I²C and SPI
  • Support for SBC, MP3 and AAC decoders
  • Wired audio support
  • Integrated double switching regulators, linear regulators and battery charger
  • External crystal load capacitors are not required for common crystals