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RT5512B 是包含电压、电流检测能力的升压式 D 类功放,其内建 Boost 转换器通过多个级别的 H 类操作为 D 类功率放大器提供最有效率的电源供应,其 I2S 数字音频接口支持左对齐、右对齐和 TDM 格式的音频数据输入,同时含有包括电压检测和电流检测结果等芯片信息的数据输出,它们使得通过适当的寄存器设定即可在 DATAO 引脚进行监控成为可能。
D 类功率放大器►输出功率:7W@12V 电压、8Ω 负载、THD+N < 1%►模拟增益:0~23dB►输出噪音:10μV@18dB 增益►为消除输出噪音而加入了 DRE►负载范围:3.2Ω~38Ω
Boost 转换器►自适应式升压电路,最高输出 12.5V►工作频率:2MHz►精确的输入电流限制►模拟部分:反馈 ADC,电流检测,斜率补偿►数字部分:电压回路和终点预测
V/I 检测
数字部分►I2S 接口,支持左对齐、右对齐和 TDM 格式►灵活的中断控制器►削波控制预防电池低压时的的大电流►音量控制
符合 RoHS 规范,不含卤素
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