Have you considered adding Bluetooth® audio to your device design? Using a Bluetooth connection, parents could hush children to sleep by streaming lullabies to their favorite toy. Or perhaps, you could connect your computer to a baseball to make an audio recording of the impact forces needed to make a perfect homerun?
Texas Instruments (TI) provides all of the parts you need to integrate Bluetooth and audio into your next ultra-low power MSP430F5229 microcontroller (MCU) design. To ensure fast implementation, TI also provides the design documents and Bluetooth software stack. Just add a speaker to your design for wireless sound. Furthermore, the hardware footprint is small and inexpensive.
The core of the Bluetooth functionality is the 7th generation SimpleLink™ CC256x Bluetooth controller. The CC256x controller supports Bluetooth 4.0 dual-mode (BR/EDR/LE) protocols (data sheet). Couple the core with an ultra-low power MSP430™ MCU to provide the Bluetooth data platform.
TI's TAS2505 low power digital input speaker amplifier frees the engineer of all audio design, except for the speaker. It also provides class-D mono amplification and a headphone channel.
Battery management and USB charging via TI's bq24055 USB charge management device, complete the portable design.
MSP430-Based Bluetooth Audio Design Block Diagram
The solution provided by TI also includes the software component. The Bluetopia®+LE SDK is licensed from Stonestreet One. The stack is built upon the Bluetopia protocol currently being used in millions of consumer and industrial devices.
The Bluetooth® + MSP Audio Sink reference design and purchasing information for the SimpleLink CC2564 Bluetooth controller are available on the TI website. These devices have generations of usage and include new protocols and features to add inexpensive audio in a package that is convenient to implement.
Texas Instruments has sponsored promotion of their industrial communications solutions on ENGINEERING.com. They have no editorial input to this post - all opinions are mine. Bruce Schreiner