FSC-BT1056 Qualcomm QCC3056 Bluetooth 5.2 Audio SoC Module for TWS Earbuds and USB Dongle


The Feasycom FSC-BT1056 is a dual-mode Bluetooth audio module that supports audio and data communication. FSC-BT1056 integrates an ultra-low-power DSP and application processor with embedded flash memory, a high-performance stereo codec, a power management subsystem, I2S, LED drivers and ADC I/O in a SoC IC. Both cores use external flash to execute code, making it easy for user to differentiate products from new features without delaying the development By default, FSC-BT1056 module is equipped with powerful and easy-to-use Feasycom firmware. It's easy to use and completely encapsulated. Feasycom firmware enables users to access Bluetooth functionality with simple ASCII commands delivered to the module over serial interface, just like a Bluetooth modem. Therefore, FSC-BT1056 provides an ideal solution for developers who want to integrate Bluetooth wireless technology into their design.


  • Qualified to Bluetooth® v5.2 specification
  • 120MHz Qualcomm® Kalimba™ audio DSP
  • 32/80MHz Developer Processor for applications
  • Firmware Processor for system
  • Advanced audio algorithms
  • High-performance 24-bit audio interface
  • Active Noise Cancellation: Hybrid, Feedforward, and Feedback modes, using Digital or Analog Mics, enabled using license keys available from Qualcomm®
  • I2S/PCM interfaces input
  • Supports aptX™, aptX™ HD, SBC and AAC audio codecs
  • Supports UART, Bit Serializer (I2C/SPI), and USB 2.0 serial interfaces
  • Integrated PMU: Dual SMPS for system/digital circuits
  • Integrated Li-ion battery charger
  • Low power modes to extend battery life
  • Single ended antenna connection with on-chip balun and Tx/Rx switch
  • Class 1 support


  • TrueWireless™ Stereo Earbuds
  • USB to Bluetooth Dongle
  • Bluetooth Transmitter


Bluetooth Module FSC-BT1056
Chipset Qualcomm QCC3056
Standard Dual-mode Bluetooth 5.2
Frequency Band 2.402 GHz ~ 2.480 GHz
Tx Power +13 dBm (Typ.) VBAT = 3.7V
Rx Sensitivity -96 dBm (Typ.) π/4 DQPSK, -88.5 dBm (Typ.) 8DPSK, -99 dBm (Typ.) BLE 1MS/s
Size (mm) 13 × 26.9 × 2.2 (1mm pad pitch)
Operating Temperature -40°C to +85°C
Storage Temperature -40°C to +85°C
VBAT_IN 2.8V ~ 4.3V
VDD_IO 1.7V ~ 3.3V
Miscellaneous Lead Free and RoHS compliant, one year warranty
Humidity 10% ~ 90% non-condensing
MSL Grade MSL 3
ESD Grade Human body model (Class 2, 2KV), charge device model (Class 3, 500V)

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