Wireless Audio Solution: Qualcomm QCC3095 Bluetooth Radio Module
In today’s competitive Bluetooth audio market, product differentiation often comes down to two key factors: audio quality and connection reliability. Whether it’s a high-end wireless speaker, stereo headset, or professional audio device, users increasingly demand low latency, high-resolution codec support, and stable connectivity.
Feasycom’s FSC-BT1104QI Bluetooth radio module is designed to meet these demanding requirements. Supporting Bluetooth 5.4 specifikation, it integrates a 240 MHz audio DSP and a high-performance 24-bit stereo audio interface, while offering compatibility with aptX, aptx hd, Ldac, AAC and other high-resolution audio codecs. It provides developers with a ready-to-use, high-quality wireless audio solution.
1. Core Positioning: Built for Audio Products
The FSC-BT1104QI is a Class 1 Bluetooth radio module supporting both Classic Bluetooth and LE Audio protocols. Housed in a compact LGA package, it is suitable for wireless audio products where both size and performance matter.
Primary target applications:
- Trådlösa högtalare / portable Bluetooth speakers
- Wired/wireless stereo headsets and headphones
- Desktop audio devices, soundbars
- Professional audio equipment (TILL EXEMPEL., studio monitoring headphones, conference microphones)
2. Key Features
2.1 Comprehensive Support for High-Resolution Audio Codecs
The FSC-BT1104QI fully supports mainstream high-quality audio codecs:
| Codec | Drag | Typical Use Cases |
| Aptx / aptx hd | CD-like quality, låg latens | Music headphones, wireless speakers |
| aptx adaptiv | Dynamically adjusts bitrate based on environment | Gaming headsets, video synchronization |
| Ldac | Fram till 990 kbps transmission, Hi-Res audio | High-end music headphones |
| Aac | Excellent iOS ecosystem compatibility | Accessories for Apple devices |
Different codecs offer trade-offs between bitrate and power consumption. LDAC is ideal for products pursuing ultimate sound quality, while aptX Adaptive dynamically balances latency and bitrate for gaming and video scenarios.
2.2 240 MHz Audio DSP + 24-bit Stereo Interface
The module integrates a powerful 240 MHz audio DSP capable of handling audio algorithms independently (EQ, brusreducering, echo cancellation, etc.) without burdening the host MCU. Equipped with a 24-bit stereo I²S interface supporting sampling rates up to 384 khz, it ensures end-to-end audio fidelity from reception to output.
For voice-centric products such as conference microphones or gaming headsets, the on-chip DSP can directly run echo cancellation and noise reduction algorithms, eliminating the need for an external audio codec chip.
2.3 Klass 1 Transmit Power for Stronger Signal Coverage
The FSC-BT1104QI supports Class 1 Bluetooth power level with a typical transmit power of +10 dbm. Compared to standard consumer-grade Bluetooth modules operating at Class 2 (typically +4 dbm), this represents approximately a 4x increase in transmit power, delivering stronger RF signals and greater link margin.
The higher transmit power provides two practical benefits:
- More stable performance in challenging environments: Significantly reduced risk of disconnections in scenarios with wall obstructions, multi-room layouts, or crowded RF conditions
- Greater product design flexibility: Antennas can be placed inside metal enclosures or smaller form factors without sacrificing connection quality
3. Key Specifications
| Parameter | Value |
| Bluetooth -version | 5.4 (Dubbelläge: Klassisk Bluetooth + Ljudet) |
| Ljudkodek | Aptx / aptx hd / aptx adaptiv / Ldac / Aac |
| Audio DSP | 240 MHz |
| Audio Interface | 24-bit stereo I²S, fram till 384 kHz sampling rate |
| Överföra kraft | Klass 1, typical +10 dbm |
| Leveransspänning | Moms: 3.0V ~ 4.2V / Vdd_io: 1.8V ~ 3.3V |
| Driftstemperatur | -40℃ ~ +85℃ |
4. Hardware Interfaces and Integration Capabilities
The FSC-BT1104QI provides a complete set of audio and communication interfaces for flexible integration:
| Gränssnitt | Beskrivning |
| Uart | 4-wire serial port, up to 4Mbps baud rate, for AT command control |
| I²s / Pcm | 24-bit stereo digital audio interface, Master/Slave modes supported |
| USB 2.0 | Full Speed device interface for firmware upgrade and audio streaming |
| I²c / Spi | Via Bit Serializer interface for peripheral expansion |
| Pio | Multiple programmable I/Os for buttons, LED indicators, etc. |
| Analog Audio Input | Fram till 4 channels differential/single-ended microphone inputs |
| Differential Audio Output | 2 channels differential speaker outputs, capable of directly driving speakers |
5. Sammanfattning
The FSC-BT1104QI is a Bluetooth 5.4 radio module deeply optimized for wireless audio products. It strikes an excellent balance between audio quality, connection reliability, interface richness, and development ease.
- Audio Quality: Supports LDAC, aptx hd, and other high-resolution codecs, paired with a 240 MHz DSP and 24-bit I²S interface to meet the core requirements of Hi-Res audio products
- Connectivity: Klass 1 +10 dBm transmit power provides more reliable connections in challenging environments
- Integration: Comprehensive interfaces including UART, I²s, USB, Pio, and analog audio I/O accommodate a wide range of product designs
- Development: AT command control eliminates the need to understand the Bluetooth protocol stack, enabling rapid prototyping
Whether you are designing a high-end LDAC-capable headset, a rugged outdoor speaker requiring stable long-range connectivity, or simply looking to quickly add Bluetooth functionality to an existing audio product, the FSC-BT1104QI is worth serious consideration.
