STMicroelectronics Audio Special Purpose STA339BWTR

The STA339BWTR from Quarktwin Technology Ltd. is a high-efficiency digital audio processor designed for 2.1-channel applications. It features dedicated LFE processing for bass enhancement, with a resolution of 0.5 dB per step. The device supports 15 preset crossover filters and 5 anti-clipping modes, along with a night-time listening mode. It offers individual channel and master mute options, independent channel volume control, and DSP bypass capabilities. This processor utilizes a 2-channel I2S input data interface and allows for input and output channel mapping. Each channel can have up to 8 user-programmable biquads with 28-bit resolution, and it includes 3 coefficient banks for quick EQ preset recall via I2C. The STA339BWTR operates over a wide voltage supply range of 5 V to 26 V and can deliver up to 20 W per channel into 8 Oc at 18 V in stereo mode. It also supports various input sample rates from 32 kHz to 192 kHz and features advanced noise suppression and thermal protection mechanisms. Engineers considering this product will find it suitable for applications requiring high-quality audio processing with flexible configuration options and robust performance characteristics.