STMicroelectronics STEVAL-CCA048V1

Overview

STEVAL-CCA048V1 from STMicroelectronics is a 2-channel digital audio demonstration board built around the STA333ML Sound Terminal® digital amplifier IC, delivering 2 × 20 W into 8 Ω at 18 V supply, supporting I²S input (32–48 kHz sample rates), DDX® power stage, and microcontroller-less operation with selectable master clock and digital format modes.

For engineers reviewing the STEVAL-CCA048V1 datasheet, STEVAL-CCA048V1 pinout, STEVAL-CCA048V1 application, or STEVAL-CCA048V1 equivalent, this board enables rapid evaluation of high-efficiency Class-D audio systems without firmware development, focusing on I²S interface compatibility, dynamic range validation (100 dB), and supply voltage flexibility (4.5–20 V).

Technical Context

The board implements a complete digital audio streaming path from I²S source to speaker output using the STA333ML's integrated DDX® modulation engine and dual-channel Class-D output stage. It operates without external microcontroller control, relying on hardware-configurable jumpers for sample rate, master clock (256×fs or 364×fs), and data format (I²S or LSB) selection.

Dynamic range is maintained at 100 dB via DDX® noise-shaping architecture, while automatic zero-detect mute prevents pop/click during signal transitions. The 4.5–20 V supply range supports both portable and line-powered use cases, with absolute maximum rating at 23 V.

Key Specifications

Availability

STEVAL-CCA048V1 is available at Aetrix Electronics and suitable for audio evaluation, consumer electronics prototyping, and industrial human-machine interface (HMI) sound systems requiring stable component supply and documented reference design validation.

Supply support for STEVAL-CCA048V1 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 analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The STEVAL-CCA048V1 belongs to ST's Sound Terminal® evaluation platform family, engineered to accelerate adoption of high-efficiency digital audio amplifiers by eliminating firmware dependencies and enabling plug-and-play I²S-based audio testing.

FAQ

Does STEVAL-CCA048V1 require a microcontroller to operate?

No. The board operates autonomously using hardware-configured jumpers for I²S format, sample rate, and master clock selection. It accepts standard I²S signals directly from audio codecs or SoCs without firmware or host processor intervention.

What speaker impedances are supported?

The board is characterized for 8 Ω loads delivering 2 × 20 W. While not officially rated for lower impedances, operation into 4 Ω is possible within thermal limits at reduced supply voltage; ST does not guarantee performance or reliability below 8 Ω per the referenced data brief.

Can STEVAL-CCA048V1 be used with APWlink (STEVAL-CCA035V1)?

Yes. The board includes an I²S interface connector compatible with STEVAL-CCA035V1 (APWlink), allowing direct connection to ST's audio pattern generator for automated test and waveform analysis without additional level-shifting or protocol conversion.

Is RoHS compliance verified for this board?

Yes. The STEVAL-CCA048V1 is explicitly stated as RoHS compliant in the official STMicroelectronics data brief (Doc ID 023900 Rev 1), confirming adherence to Directive 2011/65/EU for restricted hazardous substances in the assembled PCB and components.