1. Introducció
This manual provides detailed instructions for the QCC5124 Bluetooth 5.0 Module. This module is designed for high-quality wireless audio applications, supporting advanced codecs like aptX HD and offering various output options including I2S and SPDIF. It also features a USB sound card function for versatile connectivity.

2. Característiques
- Utilizes Qualcomm QCC5124 chip with integrated 64M-FLASH.
- Bluetooth 5.0 per a una connectivitat sense fils estable i eficient.
- Supports a wide range of audio codecs: SBC, AAC, TWS, aptX, aptX LL, and aptX HD.
- Configurable firmware options for different output types (Differential Analog, I2S, SPDIF).
- Integrated USB sound card functionality.
- Customizable for special requirements.
3. Module Types (Firmware Options)
The QCC5124 module is available with different firmware configurations to suit various application needs:
- Tipus 1: Differential analog output firmware [with call function]
- Tipus 2: I2S output firmware [without call function]
- Tipus 3: SPDIF output firmware [without call function]
- Tipus 4: Differential analog output firmware [without call function]
Please ensure you have the correct firmware type for your intended use.
4. Especificacions
| Especificació | Detall |
|---|---|
| Chipset | Qualcomm QCC5124 |
| Memòria Flash | 64M |
| Versió Bluetooth | 5.0 |
| Còdecs compatibles | SBC, AAC, TWS, aptX, aptX LL, aptX HD |
| Nom del dispositiu Bluetooth | AN5124SH_xxx |
| Origen | Xina continental |
5. Configuració i connexions
Before operating the module, ensure proper power supply and connections are established according to your application. Refer to the pinout diagram for correct wiring.

5.1 Pinout Description (Refer to Figure 2)
- I2S_OUTR: I2S Right Channel Output
- I2S_OUTL: I2S Left Channel Output
- SPKR_OUTL: Speaker Left Channel Output
- SPKR_OUTR: Speaker Right Channel Output
- PCM_IN: Entrada PCM
- PCM_OUT: Sortida PCM
- MIC_L: Microphone Left Input
- MIC_R: Microphone Right Input
- GND: Connexions a terra
- USB_DN: USB Data Negative
- USB_DP: Dades USB positives
- +3.3V output: 3.3 Volt Power Output
- +5V input: 5 Volt Power Input
- IPEX1: Antenna connection point
5.2 Specific Port Functions
- Sortida SPDIF: Available on PIO18.
- Indicador d'encesa: PIO20 outputs a high level when the module is powered on.
- Indicador de connexió Bluetooth: PIO21 outputs a high level when a Bluetooth connection is successful, and a low level when disconnected.
6. Funcionament
6.1 Key Controls
The module supports the following key functions via designated PIO pins:
- MFB (botó multifunció): Long press to turn the module on, long press again to turn it off.
- PIO2 (Volume Down): Premeu breument per baixar el volum.
- PIO3 (Volume Up): Premeu breument per augmentar el volum.
- PIO4 (Play/Pause): Short press to pause music playback, short press again to resume.
- PIO5 (Track Control): Short press for the next song, double-click for the previous song.
6.2 Bluetooth Pairing and Status
To connect your device to the module:
- Ensure the module is powered on and in pairing mode.
- Cerca the Bluetooth device named "AN5124SH_xxx" on your source device.
- Select the module to connect.
Bluetooth Status Indication (LEDs):
- Waiting for Pairing: LED0 and LED1 will flash alternately.
- Vinculació correcta: LED1 will flash.
- Playing Music & During Call: LED1 will flash.
6.3 USB Sound Card Function
When the module is connected to a computer via USB, it can function as a USB sound card. In this mode:
- The computer's audio (sound and music) will be output through the module's IIS and DAC.
- If a mobile phone is subsequently connected to the module via Bluetooth, the audio from the mobile phone will automatically take priority and play through the module.
- If the mobile phone disconnects, the module will revert to playing audio from the computer.
7. Consells d'usuari
- Always verify the firmware type (Type1, Type2, Type3, Type4) of your module to ensure it matches your intended application, especially regarding call functions and output interfaces (analog, I2S, SPDIF).
- For optimal audio quality, ensure your power supply is stable and free from noise.
- When using the USB sound card function, remember that Bluetooth audio from a paired phone will override computer audio.
8. Solució De Problemes
- Sense energia: Ensure the +5V input and GND connections are correctly made and the power supply is active. Check the MFB button for proper power-on sequence.
- Sense connexió Bluetooth: Verify the module is in pairing mode (LED0 and LED1 flashing alternately). Ensure no other device is already connected. Try restarting the module and your source device.
- Sense sortida d'àudio: Check all audio output connections (I2S, SPDIF, analog) according to your module's firmware type. Ensure volume is not muted on the module or source device.
- USB Sound Card Not Working: Confirm the USB connection to your computer. Check your computer's sound settings to ensure the QCC5124 module is selected as the output device.
- Call Function Not Working: Ensure you have a Type1 firmware module, as other types do not support call functions.
9. Garantia i Suport
For technical support, troubleshooting beyond this manual, or warranty inquiries, please contact your vendor or the manufacturer directly. Keep your purchase records handy for any support requests.





