FSC-BT956B Bluetooth 4.2 BR/EDR Audio Module for Wireless Speakers and Headsets/Headphones


The Feasycom FSC-BT956B is a high performance, highly integrated multi-media system-on-chip solution with Bluetooth connectivity, which specialized in music and audio applications. Integrating all essential electronic components, including baseband, bluetooth transceiver, power management onto a single system on chip, it offers best in class bill of material, space requirement and cost/feature ratio for bluetooth music and audio application. Built with Feasycom standard firmware by default, customized firmware is available too. The FSC-BT956B is an appropriate product for designers who want to add wireless capability to their products.


  • Compliant with Bluetooth v4.2 BR/EDR specification
  • UART programming and data interface (baudrate can up to 921600 bps)
  • Audio interfaces: PCM/I2S, analog stereo line in
  • I2C Master / PWM control interfaces
  • Postage stamp sized form factor
  • Various serial interfaces: USB 1.1 FS, UART, I2C Master and SPI Master, SD Card Interface, IR receiver
  • Supports analog key
  • Supports A2DP 1.3.1, HFP 1.5 and AVRCP 1.6.1
  • Dual-channel 24-bit voice ADC and 24-bit stereo DAC, supports sample rate of 8, 11.025, 12, 16, 22.05, 32, 44.1, 48 and 96 KHz
  • Supports MP3/SBC/WMA/ACC decoder
  • Supports audio playback from SD/USB card
  • Supports two Line in or two analog/digital MIC or one analog MIC + one digital MIC
  • Supports mix of Line in and MIC input with wide range of programmable analog gain settings
  • Internal 32K OSC for standby, shutoff and sleep state
  • Integrated Battery charger
  • Low power consumption in both active and sleep mode, 12mA when playing music
  • Supports External Antenna
  • RoHS compliant


  • Bluetooth speakers
  • Bluetooth music boxes
  • Bluetooth headsets or headphones


Bluetooth Module FSC-BT956B
Bluetooth Standard Bluetooth 4.2 BR/EDR
Frequency Band 2.402~2.480GHz ISM band
Transmit Output Power +8 dBm (Max.)
Receive Sensitivity -85 dBm (Typ.) @ 0.1% BER
Profiles SPP
Interfaces UART, USB, SPI, GPIO, I2C, PCM/I2S, PWM
Audio Codecs MP3, SBC, WMA, ACC
Size (mm) 13 × 26.9 × 2.4 (1.5mm pad pitch)
Power Supply 2.4~4.35V
Operating Temperature -20 °C to +65 °C
Storage Temperature -40 °C to +90 °C

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