STMicroelectronics STEVAL-CCA027V1

Overview

STEVAL-CCA027V1 from STMicroelectronics is a dual-channel 50 W + 50 W Class-D audio amplifier demonstration board based on the TDA7492 IC, operating in BTL mode with single-supply 8–26 V input, delivering 90% efficiency and fixed gain settings of 21.6 dB to 33.6 dB for high-fidelity home audio and active speaker applications.

For engineers reviewing the STEVAL-CCA027V1 datasheet, STEVAL-CCA027V1 pinout, STEVAL-CCA027V1 application, or STEVAL-CCA027V1 equivalent, this board enables rapid validation of differential-input Class-D amplification, thermal protection behavior, standby/mute control sequencing, and external clock synchronization under real-world load conditions.

Technical Context

The board implements the TDA7492 in dual BTL configuration, supporting both single-ended and differential analog inputs via jumper-selectable routing. Gain is set by hardware jumpers to four discrete values (21.6/27.6/31.1/33.6 dB), and synchronization is achieved through an external 200–500 kHz clock signal applied to the SYNC pin.

Thermal management relies on the PSSO36 package's exposed pad and an external heatsink, while protection circuitry includes short-circuit detection at output terminals and thermal shutdown triggered above 150 °C junction temperature.

Key Specifications

Availability

STEVAL-CCA027V1 is available at Aetrix Electronics and suitable for active speaker development, audio subsystem prototyping, and Class-D amplifier qualification requiring stable component supply and documented reference design validation.

Supply support for STEVAL-CCA027V1 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, power ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

The STEVAL-CCA027V1 belongs to ST's Audio Demonstration Board product line, engineered to accelerate evaluation of high-efficiency Class-D amplifier ICs in real-world acoustic systems with minimal design overhead.

FAQ

What input configurations does STEVAL-CCA027V1 support?

The board supports both differential and single-ended analog inputs via configurable on-board jumpers. Differential mode uses INPA+/INPA− and INPB+/INPB− pairs to reject common-mode noise, while single-ended mode routes signals through INPA and INPB with referenced ground. Input coupling capacitors are included for DC blocking in either configuration.

How is gain configured on this demonstration board?

Gain is set using three-position DIP jumpers (JP1 and JP2) that select one of four factory-trimmed internal gain values: 21.6 dB, 27.6 dB, 31.1 dB, or 33.6 dB. No external resistors or calibration are required - each setting corresponds to a specific internal feedback network inside the TDA7492 IC.

Does STEVAL-CCA027V1 include thermal protection?

Yes - the TDA7492 IC integrates thermal shutdown that activates when junction temperature exceeds 150 °C. The board routes the IC's exposed pad to a copper pour connected to an external heatsink, and the protection state is indicated by the STATUS LED going dark during latch-off. Recovery requires power cycle or STBY pin toggle.

Can the board be synchronized to an external clock?

Yes - the SYNC pin accepts a 200–500 kHz square-wave clock to align switching frequency across multiple boards or suppress beat frequencies in multi-amplifier systems. Synchronization is enabled by connecting the clock source to J1 pin 1 and grounding J1 pin 2, as shown in the schematic on page 2 of Doc ID 018811 Rev 2.