1. Product Overview
The FEASYCOM FSC-BT1026D is a high-performance Bluetooth 5.1 dual-mode audio module designed for integration into various audio applications such as Bluetooth speakers, headsets, and automotive systems. Featuring the Qualcomm QCC3024 chipset, this module offers robust wireless connectivity, advanced audio processing capabilities, and a compact design. It supports both iOS and Android compatibility and comes with multiple international certifications.

Image 1.1: Top view of the FEASYCOM FSC-BT1026D Bluetooth 5.1 Audio Module.
2. Key Features
- Bluetooth 5.1 Dual Mode: Qualified Bluetooth v5.1 specification for reliable and efficient wireless communication.
- Qualcomm QCC3024 Chipset: Integrates a 120MHz Qualcomm Kalimba audio DSP and a 32MHz developer processor for applications.
- Compact Size: Ultra-small dimensions of 13 x 26.9 x 1.7 mm, ideal for space-constrained designs.
- Extended Range: Offers a coverage range of up to 50 meters (165 feet) with a transmit power of 9 dBm.
- Audio Codec Support: Supports SBC and AAC audio codecs for high-quality audio streaming.
- Audio Interfaces: High-performance 24-bit stereo audio interface, digital and analog microphone interfaces.
- Supported Profiles: A2DP, AVRCP, HFP, HSP, PBAP, SPP, GATT for broad compatibility.
- Serial Interfaces: Supports UART, Bit Serializer (I²C/SPI), and USB 2.0 serial interfaces.
- Power Management: Integrated PMU with dual SMPS for system/digital circuits and an integrated Li-ion battery charger.
- Certifications: BQB, FCC, IC, CE, TELEC, KC, NCC certified for global market compliance.
- Advanced Audio Algorithms: Includes 1 or 2-mic Qualcomm cVc headset noise reduction and echo cancellation technology.

Image 2.1: Visual representation of Bluetooth 5.1, QCC3024 chipset, and various certifications for the module.
3. Setup and Installation
This section provides general guidelines for integrating and setting up the FSC-BT1026D module. Specific implementation details may vary based on your host device and application.
3.1 Pin Definitions and Connections
Refer to the official datasheet for detailed pin definitions and electrical characteristics. Proper connection of power, ground, audio input/output, and control signals (UART, I²C/SPI) is crucial for correct operation.

Image 3.1: Bottom view of the FSC-BT1026D module, showing the pin array for integration.
3.2 Power Supply
- Ensure the power supply voltage is within the specified operating range for the module.
- Implement proper power filtering and decoupling to prevent noise interference.
3.3 Audio Input/Output
- Connect analog or digital audio sources (e.g., IIS) to the module's input pins as per your design.
- Route the module's audio output to your speaker amplifier or headphone driver.
3.4 Antenna Placement
The module features an integrated antenna. For optimal performance, ensure the antenna area is clear of metal obstructions and placed in an open environment.

Image 3.2: Top view of the module, highlighting the integrated antenna area for proper placement considerations.
4. Operating Instructions
Once the FSC-BT1026D module is correctly integrated and powered, it can be operated via its host controller or through direct commands, depending on the firmware configuration.
4.1 Bluetooth Pairing
- Power On: Ensure the module and its host device are powered on.
- Discovery Mode: The module typically enters discovery mode automatically or can be commanded to do so by the host.
- Scan on Host Device: On your smartphone, tablet, or other Bluetooth-enabled device, scan for available Bluetooth devices.
- Select Module: Select the FSC-BT1026D (or its configured name) from the list of discovered devices.
- Pair: Confirm pairing if prompted. A successful connection will be indicated by the module's status LED or host feedback.
4.2 Audio Streaming
After successful pairing, audio can be streamed from your connected device to the module. The module will process the audio and output it through its configured audio interface.

Image 4.1: The module supports various profiles like HSP, HFP, A2DP, and AVRCP for audio streaming and control.
4.3 Data Communication
For applications requiring data communication (e.g., SPP, GATT profiles), the module can exchange data with the connected device via its serial interfaces (UART, I²C/SPI). Refer to the programming guide for specific commands and protocols.
5. Maintenance
The FSC-BT1026D module is designed for long-term reliability. Minimal maintenance is required.
- Cleaning: If necessary, gently clean the module with a dry, soft cloth. Avoid using liquids or harsh chemicals.
- Storage: Store the module in a dry, anti-static environment, away from extreme temperatures and direct sunlight.
- Handling: Always handle the module by its edges to avoid damaging components or introducing electrostatic discharge.
6. Troubleshooting
If you encounter issues with the FSC-BT1026D module, refer to the following common troubleshooting steps.
6.1 No Power
- Verify that the power supply is correctly connected and providing the specified voltage.
- Check for any short circuits or incorrect wiring.
6.2 Cannot Pair with Device
- Ensure the module is in discovery/pairing mode.
- Check that Bluetooth is enabled on your host device.
- Move the host device closer to the module to rule out range issues.
- Try restarting both the module (or its host system) and the pairing device.
- Clear previously paired devices from your host device's Bluetooth settings.
6.3 No Audio Output
- Confirm that the module is successfully paired and connected to an audio source.
- Check the audio connections from the module to your amplifier/speakers.
- Ensure the volume on both the source device and the output system is not muted or set too low.
- Verify that the correct audio profile (e.g., A2DP) is active.
6.4 Poor Connection Quality
- Reduce the distance between the module and the connected device.
- Remove any obstacles (especially metal) between the devices.
- Minimize interference from other 2.4 GHz wireless devices (Wi-Fi, other Bluetooth devices).
- Ensure the module's antenna area is unobstructed.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | FSC-BT1026D |
| Bluetooth Version | 5.1 (Dual Mode) |
| Chipset | Qualcomm QCC3024 |
| Dimensions (L x W x H) | 13 x 26.9 x 1.7 mm (0.51 x 1.06 x 0.06 inches) |
| Weight | 1 Grams (0.035 ounces) |
| Transmit Power | 9 dBm |
| Coverage Range | Up to 50m (165ft) |
| Supported Profiles | A2DP, AVRCP, HFP, HSP, PBAP, SPP, GATT |
| Audio Codecs | SBC, AAC |
| Interfaces | UART, I²C/SPI, USB 2.0, IIS (Input/Output) |
| Operating Temperature | -40°C to +85°C |
| Certifications | BQB, FCC, IC, CE, TELEC, KC, NCC, SRRC |
| Compatible OS Family | Android, iOS |

Image 7.1: Diagram showing the dimensions (13mm x 26.9mm) and supported Bluetooth profiles of the module.

Image 7.2: Size comparison of the FSC-BT1026D module next to a US dollar coin, illustrating its compact form factor.
8. Warranty Information
FEASYCOM products are typically covered by a limited warranty against defects in materials and workmanship. For specific warranty terms, duration, and conditions applicable to the FSC-BT1026D module, please refer to the official warranty documentation provided by FEASYCOM or contact their customer support directly. Keep your purchase receipt as proof of purchase.
9. Support and Contact
For technical assistance, detailed datasheets, firmware updates, or further inquiries regarding the FEASYCOM FSC-BT1026D module, please contact FEASYCOM customer support.
- Official Website: Visit the FEASYCOM website for product information and resources.
- Technical Support: Refer to the contact section on the official website for technical support channels.
- Documentation: Access the latest datasheets and application notes from the product page on the FEASYCOM website.