The TI Bluetooth + MSP430 audio sink reference design offers customers a flexible platform to develop low-cost, low-power audio applications. This solution is ideal for a wide range of end products such as children's toys, basic Bluetooth speakers, and audio playback accessories. By providing complete design files, the reference design helps developers focus on their application development rather than starting from scratch. The software stack included in this design is the Stonestreet One Bluetopia Bluetooth stack, which is certified and free of royalties.
This reference design leverages the low-power and cost-effective MSP430F5229 microcontroller along with TI’s CC2564 chip, delivering Bluetooth audio capabilities using SBC encoding and decoding. It is designed to offload audio processing tasks from the MCU to the Bluetooth device, enabling more efficient power usage in audio applications.
The solution is built on a 4-layer PCB layout and uses a QFN package, making it compact and suitable for space-constrained designs. At its core, the CC2564 delivers industry-leading Bluetooth performance with a +12dBm output power, ensuring reliable connectivity. Additionally, the design incorporates TI’s TAS2505 low-power digital input speaker amplifier and the BQ24055 USB charge management IC, enhancing both audio quality and battery life.
Both the CC256x series and the Bluetopia stack feature a Bluetooth subsystem QDID, allowing for a single Bluetooth product listing, simplifying the certification process.
### Key Features:
- Bluetooth audio support (SBC encoding/decoding) with minimal cost and power consumption
- Offloads audio processing from the MCU to the Bluetooth module for improved efficiency
- Compact 4-layer PCB and QFN package for low-end wireless audio solutions
- High-performance CC2564 with +12dBm output power
- Integrated TAS2505 speaker amplifier and BQ24055 charging management for enhanced functionality
### Related Devices
1. **BQ24055** – An 800mA single-input, single-cell Li-Ion battery charger that automatically detects AC or USB power sources and includes a Power Good (PG) signal.
2. **CC2560 Bluetooth Smart Ready Controller** – A fully integrated Bluetooth BR/EDR/LEHCI solution that reduces design complexity and accelerates time-to-market. Based on TI’s seventh-generation Bluetooth core, it supports Bluetooth 4.0 Dual Mode (BR/EDR/LE), offering proven reliability and low power consumption across all Bluetooth modes.
**Applications:**
This reference design is well-suited for applications like architectural lighting, HMI systems, and POS terminals, where low power and compact size are key requirements.
Shanghai Janetec Electric Co., Ltd. , https://www.janetecelectric.com