ST STA370BWS 2.1路40W数字音频方案
ST 公司的STA370BWS是 2.1路40W高效率数字音频系统,是数字音频处理,数字放大器控制和功率输出级的整体解决方案, 2.1路提供两个半桥和单个全桥, 提供2 x 9 W + 1 x 20 W输出功率,两个全桥的两路可提供2x20W输出功率,工作电压7.0 V 到21.5 V,主要用于各种消费类电子,包括最新超薄的LED背光TV.本文介绍STA370BWS主要特性, 应用电路和输出低通滤波器电路.
STA370BWS: 2.1-channel 40-W high-efficiency digital audio system Sound Terminal™ The STA370BWS is an integrated solution of digital audio processing, digital amplifier controls and power output stage to create a high-power single-chip FFX digital amplifier with high-quality and high-efficiency. Three channels of FFX processing are provided. The FFX processor implements the ternary, binary and binary differential processing capabilities of the full FFX processor.
The STA370BWS is part of the Sound Terminal. family that provides full digital audio streaming to the speakers and offers cost effectiveness, low power dissipation and sound enrichment.
The power section consists of four independent half-bridges. These can be configured via digital control to operate in different modes.
.. 2.1 channels can be provided by two half-bridges and a single full-bridge, supplying up to 2 x 9 W + 1 x 20 W of output power.
..
