Feasycom FSC-BT1026D Bluetooth Audio Module User Manual

1. Танилцуулга

The Feasycom FSC-BT1026D is a high-performance Bluetooth 5.1 dual-mode audio receiver System-on-Chip (SoC) module. It is built around the Qualcomm QCC3034 chip, designed for advanced audio and data communication applications. This module supports both Bluetooth Low Energy (BLE) and Basic Rate/Enhanced Data Rate (BR/EDR) technologies.

It integrates an ultra-low-power DSP, an application processor with embedded flash memory, a high-performance stereo codec, and a power management subsystem. The FSC-BT1026D is ideal for integration into high-end wireless headphones, Bluetooth speakers, automotive Bluetooth systems, and smart home devices.

The module comes with user-friendly firmware, allowing developers to access Bluetooth functionalities using simple ASCII commands via a serial interface, effectively operating like a Bluetooth modem.

2. Үндсэн шинж чанарууд

• Bluetooth стандарт: Qualified to Bluetooth v5.1 specification, supporting dual-mode (BR/EDR + BLE).
• Чипсет: Qualcomm QCC3034 with integrated 120 MHz Qualcomm Kalimba audio DSP and 32 MHz Developer Processor.
• Аудио кодлогч: Supports aptX, aptX HD, aptX Low Latency, SBC, and AAC.
• Аудио интерфэйс: High-performance 24-bit stereo audio interface, digital and analog microphone interfaces.
• Дуу чимээг бууруулах: 1 or 2-mic Qualcomm cVc™ headset noise reduction and echo cancellation technology.
• Profiles (BR/EDR): A2DP, AVRCP, HFP, HSP, PBAP, SPP.
• Profiles (BLE): ATT, GATT Client and Peripheral - Any Custom Services.
• Цуваа интерфэйсүүд: UART, Bit Serializer (I²C/SPI), USB 2.0.
• Эрчим хүчний менежмент: Integrated PMU with dual SMPS for system/digital circuits, and an integrated Li-ion battery charger.
• Антен: On-board antenna by default, with support for external antenna.
• Хэмжээ: 13mm × 26.9mm × 2.2mm (stamp 52-pin package).
• Ашиглалтын температур: -40 хэмээс +85 хэм хүртэл.
• Нийлүүлэлт ботьtage: VBAT_IN: 2.8V ~ 4.3V; VDD_IO: 1.7V ~ 3.3V.
• Програм хангамж: Flexible QSPI flash programmable platform, supports OTA upgrade and in-depth customization.
• GPIO: Flexible PIO controller and LED pins with PWM support (23 GPIOs).

3. Техникийн үзүүлэлтүүд

The following table details the technical specifications of the FSC-BT1026D module:

For a complete list of specifications and detailed electrical characteristics, please refer to the official datasheet available from Feasycom.

4. Hardware Setup and Integration

4.1 Зүүний тодорхойлолт

The FSC-BT1026D module features a 52-pin stamp package. Understanding the pin assignments is crucial for proper integration.

Key pins include:

• GND (Pins 1, 22, 32, 52): Цахилгаан газар.
• VBAT_IN (Pin 33): Батерейны эзлэхүүнtage input (2.8V ~ 4.3V).
• VDD_IO (Pin 36): I/O нийлүүлэлтийн ботьtage (1.7V ~ 3.3V).
• SYS_CTRL (Pin 34): System control pin, typically connected to an ON/OFF push button. Enables on-chip regulators.
• RESET (Pin 8): Идэвхтэй бага дахин тохируулах дохио.
• UART Interface (Pins 13, 14, 15, 16): BT_TX/PIO5, BT_RX/PIO4, BT_CTS/PIO22, BT_RTS/PIO23 for serial communication.
• USB Interface (Pins 37, 38): USB_DP, USB_DN for full-speed USB 2.0.
• Audio Outputs (Pins 46, 47, 48, 49): AUDIO_HPR_N/SPK_RN, AUDIO_HPR_P/SPK_RP, AUDIO_HPL_N/SPK_LN, AUDIO_HPL_P/SPK_LP for headphone/speaker differential outputs.
• Audio Inputs (Pins 43, 44): MIC_LP, MIC_LN for microphone differential inputs.
• MIC_BIAS (Pin 45): Микрофоны хэвийсэн гаралт.
• RF_OUT (Pin 51): Bluetooth дамжуулах / хүлээн авах.

For detailed pin descriptions and alternative functions, refer to the official datasheet.

4.2 Эрчим хүчний менежмент

The module's power management system includes a Li-ion battery charger and dual SMPS. The charger supports rates from 200mA to 1800mA with external components. The system has five main operating states: Trickle Charge, Pre-Charge, Fast Charge (Constant Current and Constant Voltage), and Standby Mode.

Батерейны хамгаалалт: It is recommended to use a battery protection IC. Customer application software should turn off the device at approximately 3.0V to prevent irreversible damage to the Li-ion battery.

Charger with External Transistor: For fast charging, an external PNP pass transistor can be used. The module senses charging current via a sense resistor between VCHG and VCHG_SENSE pins.

4.3 Hardware Integration Guidelines

Proper PCB layout and soldering are critical for optimal performance.

• Гагнуур: The module is compatible with industrial standard reflow profiles for Pb-free solders. Consult the datasheet of your specific solder paste for profile тохиргоо.
• Антенны байршил: For internal antenna designs, avoid placing copper or metal near the antenna to prevent interference. For external antennas, the trace from the module's RF port (Pin 51) to the external antenna should be 50Ω impedance and as short as possible. Maintain a 5mm clearance space around the antenna.
• Газардуулга: Use grounding vias separated by a maximum of 3mm at the edge of grounding areas to prevent RF penetration. Ensure solid ground planes.
• Digital Circuits: RF critical circuits should be clearly separated from digital circuits on the system board.
• Цуваа интерфэйсүүд: When using UART, ensure proper handshaking (CTS/RTS) to prevent buffer overflows. For I²C, pull-up resistors are required externally.

For detailed application schematics, refer to the official datasheet, specifically the "Application Schematic" section (PDF page 39).

5. Ашиглалтын заавар

The FSC-BT1026D module operates using simple ASCII commands via its serial interface (UART), functioning like a Bluetooth modem. This allows for easy integration and control of Bluetooth functionalities.

5.1 Basic Operation Flow

1. Асаах: Apply power to VBAT_IN (2.8V ~ 4.3V) and VDD_IO (1.7V ~ 3.3V). Assert SYS_CTRL (Pin 34) for more than 20ms to start up the module.
2. Module Initialization: The module will initialize its internal components.
3. Цуврал харилцаа холбоо: Establish a serial connection (e.g., via UART) to the module. The default UART baud rate is 115200, N, 8, 1.
4. Command Interface: Send AT commands to the module to configure and control Bluetooth functions.
5. Блютүүт хослуулах: Use specific AT commands to initiate Bluetooth pairing mode. The module's LED indicators can provide visual feedback on pairing status.
6. Аудио дамжуулалт: Once paired, the module can act as an audio receiver, supporting A2DP, AVRCP profiles for stereo audio streaming.

5.2 LED үзүүлэлтүүд

The module typically uses LED pins for status indication:

• LED0 (Red): Flashes during pairing mode.
• LED1 (Blue): Stays on when SPP/BLE connection is successful.
• LED2 (Green): Used for USB Audio/update/RF test.

These indications can be customized via firmware.

5.3 Програм хангамжийн шинэчлэлтүүд (OTA)

The module supports Over-The-Air (OTA) firmware updates. Refer to the Feasycom documentation for the specific procedures and tools required for OTA updates.

6. Засвар үйлчилгээ, арчилгаа

• Байгаль орчны нөхцөл: Operate and store the module within the specified temperature ranges (-40°C to +85°C). Avoid extreme humidity (10%~90% non-condensing).
• Харьцуулах: Handle the module with care to prevent physical damage. Avoid exposing it to static electricity (ESD precautions).
• Цэвэрлэгээ: If necessary, clean the module gently with a dry, lint-free cloth. Do not use harsh chemicals or solvents.
• Эрчим хүчний хангамж: Эрчим хүчний хангамжийн хэмжээг баталгаажуулна ууtages (VBAT_IN and VDD_IO) are within the specified limits to prevent damage.

7. Алдаа засах

• Модуль асахгүй байна:
  • Verify that VBAT_IN and VDD_IO voltages are correctly applied and within specification.
  • Ensure the SYS_CTRL pin is asserted for at least 20ms during power-up.
  • Check for any short circuits or incorrect wiring.
• Bluetooth холболт байхгүй:
  • Ensure the module is in pairing mode (check LED indicators).
  • Verify that the host device's Bluetooth is enabled and discoverable.
  • Check the antenna connection and ensure proper layout guidelines are followed.
  • Confirm that the module's firmware is correctly configured for Bluetooth operation.
• Аудио чанар муу эсвэл салалт:
  • Check the distance between the module and the connected device; ensure it's within the effective range.
  • Minimize interference from other 2.4GHz devices (Wi-Fi, other Bluetooth devices).
  • Verify audio wiring and connections to the module's audio interfaces.
  • Ensure the power supply is stable and free from noise.
• Serial Communication Issues:
  • Verify UART baud rate, data bits, parity, and stop bits settings (default: 115200, N, 8, 1).
  • Check UART TX/RX connections.
  • If flow control (CTS/RTS) is used, ensure it's correctly implemented.

8. Хэрэглэгчийн зөвлөмж

• Changing Device Name: The module's device name can typically be changed permanently using specific AT commands via the serial interface. Consult the Feasycom AT command set documentation for the exact command. This allows for easier identification in multi-device environments.
• Тохируулга: Leverage the flexible QSPI flash programmable platform and in-depth customization support to tailor the module's functionality to your specific application needs.
• Гадаад антен: If experiencing range issues, consider using an external antenna for improved Bluetooth signal coverage, ensuring proper impedance matching and layout.

9. Баталгаат хугацаа ба дэмжлэг

Feasycom Technology provides a one-year warranty for the FSC-BT1026D module. For technical support, detailed documentation (including datasheets and AT command sets), or inquiries regarding corrections, modifications, and services, please contact Feasycom directly.

Холбоо барих мэдээлэл:

• Shenzhen Feasycom Co.,LTD
• Имэйл: sales@feasycom.com
• Хаяг: Rm 508, Building A, Fenghuang Zhigu, No.50, Tiezai Road, Xixiang, Baoan District, Shenzhen, 518100, China.
• Утас: 86-755-27924639, 86-755-23062695
• Webсайт: www.feasycom.com

Customers should always obtain the newest relevant information before placing orders and ensure adequate design and operating safeguards for their products.