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Home > Products > Module / Bluetooth / Zigbee > BM-3031

BM-3031 is a highly integrated single-chip Bluetooth 5, audio and programmable application module. It includes high-performance, analog, and digital audio codes, Class-AB speaker driver, advanced power management, Li-ion battery charger, light-emitting diode (LED) drivers, and flexible interfaces incuding inter-integrated circuit sound (I2S), inter-integrated circuit
interface (I2C), universal asynchronous receiver transmitter (UART), and programmable input/output (PIO).

The system-on-chip architecture design of the module makes a much smaller space and minimal cost and simplifies the whole system design.


  • 25x12.5×2.05mm 45-pin
  • High-performance programmable Bluetooth stereo audio with Qualcomm aptX audio
  • Fully qualified dual-mode Bluetooth v5.0 system
  • Tri-core processor architecture with low power for extended battery life
  • 120MHz audio DSP
  • High-performance 24-bit stereo audio interface
  • Digital and analog microphone interfaces
  • Flexible PIO controller and LED pins with PWM support
  • 1-mic cVc speaker noise reduction and echo cancellation technology
  • aptX, aptX HD, aptX Low Latency, SBC, and AAC audio codecs support
  • analog DAC: Stereo analog Class-AB audio output
  • analog ADC: Stereo analog inputs configurable as single ended line inputs, or unbalanced, or balanced analog microphone inputs
  • I2S/PCM interface
      -24-bit I2S interface with 1 input and 3 output channels
      -Supports 8, 16, 32, 44.1, 48, 96, 192kHz sample rates
  • SPDIF interfaces
      -2, configurable as input or output
      -Supports 8, 16, 32, 44.1, 48, 96, 192kHz sample rates
  • Audio MCLK: Programmable, available on PIO[15]
  • Digital mics
      -6 mono/3 stereo
      -Supports 500kHz, 1, 2, 4MHz clock frequencies
  • serial interfaces: UART, I2C/SPI, USB-FS
  • integrated Li-ion battery charger
  • RoHS compliant
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