This application note introduces the STA308A/STA508 application
The document provides a detailed description of the STA308A-508 Evaluation Board, which utilizes the STA308A digital audio processor and the STA508 quad half bridge power stage. The board is designed to support Direct Digital Amplification (DDX) applications, delivering high-quality audio output with configurable power supplies ranging from 10V to 35V.
| Output Power (Stereo BTL) | 80 + 80W @ THD = 10% at Voc = 35V on 8Q load |
|---|---|
| Output Power (Single BTL) | Peak of 160W@ THD = 10% at Voc= 35V on 4Q load |
| Volume Control Range | +48dB to -78dB in 0.5dB increments |
| Tone Control Range | +/-12dB in 2dB steps |
| Sample Rate Support | 32KHz to 96KHz |
The board allows soldering of either the STA308 or STA308A device as the digital audio processor.
The board supports logic stages at 5V and power stages from 10V to 35V, or a single combined supply.
The board accommodates both coaxial (electrical single ended) and optical S/PDIF digital audio interfaces.