STMicroelectronics X-NUCLEO-CCA01M1

Overview

X-NUCLEO-CCA01M1 from STMicroelectronics is a sound terminal expansion board built around the STA350BW 2.1-channel digital audio output IC, designed for plug-in evaluation and prototyping on STM32 Nucleo development platforms. It delivers 2 × 50 W into 6 Ω at 25 V via ternary PWM, supports I²S audio input and I²C device control with selectable address, includes dual independent DRCs, and features 8 user-programmable biquad filters per channel for real-time EQ tuning.

For engineers reviewing the X-NUCLEO-CCA01M1 datasheet, X-NUCLEO-CCA01M1 pinout, X-NUCLEO-CCA01M1 application, or X-NUCLEO-CCA01M1 equivalent, this board enables rapid validation of high-efficiency Class-D audio subsystems, firmware integration with STM32Cube, multi-board channel scaling (up to 4 channels), and analog speaker-level output without external amplification stages.

Technical Context

The board implements the STA350BW's FFX™ modulation architecture to achieve 100 dB SNR and dynamic range while maintaining thermal efficiency in compact form factors. Its dual-band DRC configuration supports either B2DRC anti-clipping or independent limiter/compressor operation per channel, synchronized via I²C register writes.

Digital audio routing uses standard I²S with left-justified or I²S format support, and EQ processing leverages three coefficient banks for fast preset recall. Power delivery separates logic (3.3 V from Nucleo) and output stage (external 25 V supply via dedicated connector), isolating noise-sensitive digital paths from high-current analog outputs.

Key Specifications

Availability

X-NUCLEO-CCA01M1 is available at Aetrix Electronics and suitable for STM32-based audio prototyping, industrial human-machine interface (HMI) sound feedback, and educational embedded systems labs requiring stable component supply and documented firmware integration paths.

Supply support for X-NUCLEO-CCA01M1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power management devices, and MEMS sensors for industrial, automotive, and consumer applications.

The X-NUCLEO series targets rapid hardware-software co-development for STM32 ecosystems, with CCA01M1 specifically engineered to accelerate evaluation of high-fidelity, low-heat digital audio subsystems in resource-constrained embedded designs.

FAQ

Does X-NUCLEO-CCA01M1 require an external power supply for audio output?

Yes - the board requires a separate 25 V DC supply for the STA350BW output stage, delivered via the dedicated screw-terminal connector. The STM32 Nucleo board provides only 3.3 V logic power; insufficient for driving the 50 W/channel Class-D amplifier section.

Can multiple X-NUCLEO-CCA01M1 boards be used simultaneously with one STM32 Nucleo host?

Yes - up to two X-NUCLEO-CCA01M1 boards can be stacked on a single STM32 Nucleo board using ST morpho headers, enabling 4-channel audio output. I²C addresses are jumper-selectable to avoid bus conflicts between boards.

Is STM32Cube firmware support included with the board?

Yes - ST provides a free, open-source firmware library with full HAL driver support, I²C/I²S initialization examples, DRC/EQ configuration utilities, and ready-to-run audio playback demos compatible with STM32CubeMX and STM32CubeIDE.

What speaker impedance ranges are supported by the X-NUCLEO-CCA01M1?

The board is characterized for 6 Ω loads at 25 V, delivering 50 W per channel. It supports 4–8 Ω nominal speakers; operation below 4 Ω risks thermal shutdown due to increased current draw beyond the STA350BW's safe operating area limits.