STMicroelectronics X-NUCLEO-CCA01M1 2.1-Channel Digital Audio Amplifier Expansion Board | STA350BW Shield | For STM32 Nucleo Sound Systems
Description
SPIDER Automation STMicroelectronics X-NUCLEO-CCA01M1 2.1-Channel Digital Audio Amplifier Expansion Board provides developers with a robust, high-efficiency platform for evaluating digital audio output and Class-D amplification. Built around the advanced STA350BW Sound Terminal IC, this shield enables direct connection and driving of speaker pairs straight from digital audio streams, making it an exceptional tool for modern embedded audio design.
The board supports 2-channel ternary PWM output capable of delivering up to 2 x 50W at 25V into 6-Ohm loads. Equipped with FFX (Flexible Sound Terminal) technology, it achieves a remarkable 100 dB SNR and wide dynamic range with ultra-low distortion. It interfaces with host STM32 Nucleo boards via I2S for audio streaming and I2C for device configuration. Featuring dual independent Dynamic Range Controllers (DRCs) configurable as dual-band anti-clippers and stackable support for multi-channel expansion, the X-NUCLEO-CCA01M1 streamlines the creation of high-performance audio electronics.
Key Features
- STA350BW Sound Terminal Core: High-efficiency digital audio processor and amplifier capable of driving stereo or 2.1-channel systems.
- High-Power Audio Output: Delivers up to 2 x 50W of continuous power into 6-Ohm speakers at a 25V supply rail.
- FFX Technology Architecture: Proprietary Flexible Sound Terminal design providing a 100 dB signal-to-noise ratio and pristine audio clarity.
- Fine Digital Gain Control: Programmable volume control ranging from +48 dB down to -80 dB with high-precision 0.125 dB/step adjustments.
- Dual Independent DRCs: Features two configurable Dynamic Range Controllers usable as dual-band anti-clipper circuits (B2DRC).
- I2S Audio Input Interface: Seamless digital audio streaming directly from the host microcontroller or external audio sources.
- I2C Control Bus: Allows device configuration and feature tuning with selectable slave addresses for multi-board setups.
- Stackable Nucleo Layout: Compatible with ST morpho connector layouts, permitting multiple expansion boards to be cascaded for 4-channel audio systems.
Benefits
- Direct Digital-to-Power Conversion: Eliminates traditional DAC stages by processing pure digital audio streams directly to PWM speaker outputs, reducing noise and component count.
- Scalable Multi-Channel Design: Stackable architecture allows engineers to mount up to two boards on a single STM32 Nucleo host for complex multi-channel speaker outputs.
- Advanced Speaker Protection: Integrated DRCs and anti-clippers prevent audio distortion and safeguard speaker drivers from overdriving.
- Seamless Prototyping: Native software and hardware compatibility with the STM32 Open Development Environment accelerates audio product development.
Applications
- Smart Home Audio & Soundbars: High-fidelity digital amplifiers for internet-connected speakers, multi-room audio units, and compact home theaters.
- Embedded Multimedia Systems: Audio output stages for kiosk terminals, digital signage, and interactive public displays.
- Robotics & Smart Toys: High-volume voice synthesis, sound effects, and musical output controllers for advanced hobbyist and industrial builds.
- Audio Engineering R&D Labs: Academic and commercial prototyping of Class-D digital amplification topologies and DSP algorithms.
Package Includes
- 1 x STMicroelectronics X-NUCLEO-CCA01M1 2.1-Channel Digital Audio Amplifier Expansion Board (STA350BW Shield)
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand / Series | SPIDER Automation / STMicroelectronics STM32 Nucleo Audio Series |
| Item Type | 2.1-Channel Digital Audio Output Expansion Board & Shield |
| Model Order Code / SKU | X-NUCLEO-CCA01M1 / SKU-SPIDER-X-NUCLEO-CCA01M1 |
| Silicon Manufacturer | STMicroelectronics |
| Core Audio Amplifier IC | STA350BW Sound Terminal High-Efficiency Digital Audio System |
| Audio Channel Architecture | 2.1-Channel Support (Configured for Ternary PWM Stereo Output) |
| Maximum Output Power | 2 × 50W @ 25V into 6-Ohm Speaker Loads |
| Audio Performance Metrics | FFX Technology, 100 dB SNR, Wide Dynamic Range |
| Digital Audio Input Interface | I2S Serial Audio Bus |
| Control & Configuration Bus | I2C Interface with Selectable Device Addresses |
| Volume & Gain Control | +48 dB to -80 dB range with 0.125 dB / step precision |
| Host Board Compatibility | STM32 Nucleo Development Boards (via ST Morpho Connectors) |
| Board Physical Dimensions | 15 cm Length × 12 cm Width × 4 cm Height (Packaging Dimensions) |
| Package Shipping Weight | 0.065 kg (65 g) |
| Package Shipping Dimensions | 15 cm × 12 cm × 4 cm |
