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RT5510是带有升压能力的BTL连接D类音频放大器,同时兼具输出电压、电流监测能力。其内置Boost转换器工作于G类模式,可根据需要分级提升电压以满足D类放大器功率输出的需要。其数字式的音频接口支持以I2S、左对齐、右对齐、TDM和DSP A/B等格式输入音频信息、输出电压、电流等芯片内部的数据信息,那些需要输出的信息可通过适当的寄存器设定进行选择,监测者通过接收DATAO端的输出数据即可实现所需监测。
D类音频功放►4.8W输出功率@9.5V、8Ω负载、THD < 1%►6.5W输出功率@9.5V、4Ω负载、THD < 1%►0/3/6/9/12/15/18dB增益选择►20μV输出噪声►使用DRE可降低输出噪声
Boost转换器►自适应式Boost转换器►自动选定预设输出电压,最高限制9.5V►精确限制输入电流►模拟部分:电流检测,斜率补偿,反馈ADC►数字部分:电压环和升压模式的终点预测
数字接口►数字式音频接口,支持I2S、左对齐、右对齐、TDM和DSP A/B格式►灵活易用的中断控制器►有电池卫士之称的削顶控制防止电池电压太低时吸入大电流►看门狗监视应用进程状态,可适时关闭系统►音量控制
符合RoHS规范,不含卤素
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