STMicroelectronics STEVAL-CCA029V1

Overview

STEVAL-CCA029V1 from STMicroelectronics is a 2-channel Class-D audio amplifier demonstration board based on the TDA7491LP IC, delivering 5 W + 5 W continuous output into 8 Ω at 9 V supply and 10% THD. It supports BTL stereo configuration, adjustable gain (20/26/30/32 dB), undervoltage protection (4 V), and external synchronization - designed for rapid evaluation of high-efficiency audio amplification in compact consumer electronics.

For engineers reviewing the STEVAL-CCA029V1 datasheet, STEVAL-CCA029V1 pinout, STEVAL-CCA029V1 application, or STEVAL-CCA029V1 equivalent, this board enables hands-on validation of dual-channel Class-D performance, gain configuration, standby/mute control, and thermal behavior without heatsink under real-world supply (5–14 V) and load (4–8 Ω) conditions.

Technical Context

The board implements the TDA7491LP in PSSO36 (slug-down) package, leveraging its integrated BTL output stage to drive two 4–8 Ω speakers with >90% efficiency. Its dual independent input paths support both single-ended and differential signal routing via onboard jumpers.

Microswitches provide hardware-level control of standby and mute functions, while an external sync input allows clock alignment in multi-board systems. Undervoltage lockout triggers below 4 V to prevent unstable operation during brown-out conditions.

Key Specifications

Availability

STEVAL-CCA029V1 is available at Aetrix Electronics and suitable for audio subsystem prototyping, smart speaker reference design validation, and portable multimedia device development requiring stable component supply and documented ST evaluation platform support.

Supply support for STEVAL-CCA029V1 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, designing and manufacturing microcontrollers, analog ICs, power management, sensors, and audio solutions for industrial, automotive, and consumer markets.

The STEVAL-CCA029V1 belongs to ST's STEVAL demonstration board family, engineered specifically to accelerate adoption of their Class-D amplifier portfolio by providing fully tested, layout-verified hardware with documented configuration options and thermal performance data.

FAQ

What power supply is required to operate STEVAL-CCA029V1 at full rated output?

A regulated DC supply between 5 V and 14 V is required. For full 5 W + 5 W output into 8 Ω at 10% THD, use 9 V. At 6.5 V, it delivers 5 W + 5 W into 4 Ω. Supply must deliver ≥2 A peak current and maintain ripple <100 mVpp to avoid audible artifacts or UVP triggering.

How do I configure single-ended vs. differential input on this board?

Jumper settings JP1–JP4 determine input topology: JP1/JM1 closed = single-ended left; JP2/JM2 closed = single-ended right; JP3/JM3 and JP4/JM4 closed = differential mode. Input coupling capacitors (C1/C2) are included for AC-coupled sources; DC-coupled operation requires removal of those caps and verification of common-mode voltage compliance.

Does STEVAL-CCA029V1 include thermal protection or heatsinking?

No discrete heatsink is needed: the TDA7491LP in PSSO36 package dissipates heat through its exposed slug, and the board's copper pour under the IC provides sufficient thermal conduction. The IC includes internal thermal shutdown (~150 °C), but no external thermal sensor or fan control interface is implemented on this demo board.

Can STEVAL-CCA029V1 be used as a production audio module?

No - it is a demonstration board intended for evaluation only. It lacks EMI filtering for CE/FCC compliance, has no enclosure or mechanical mounting provisions, and uses non-automotive-grade passives. For production, ST recommends designing a custom PCB using the TDA7491LP with layout guidelines from AN3502 and full EMC validation.