论文部分内容阅读
采用D类放大器可延长电池供电终端产品的工作时间,并产生更少的热量,因此高效率D类音频功率放大器正越来越多地被用在移动电话、智能电话、PDA及其他类似便携式应用中,以取代AB类放大器。简单陈述D类功放的构成及原理,并以TI公司的芯片TPA2012D2为例,着重介绍该芯片在便携式媒体播放器( PMP)中的应用实例。该例在实际应用中得到较好的音频播放表现。
Class D amplifiers extend the operating life of battery-operated termination products and generate less heat, so high-efficiency Class-D audio power amplifiers are increasingly being used in mobile phones, smart phones, PDAs and other similar portable applications In order to replace the AB class amplifier. Briefly describe the structure and principle of class D power amplifier, and take TI’s chip TPA2012D2 as an example to highlight the application example of the chip in portable media player (PMP). The example in the practical application of better audio playback performance.