描述................................................................................................................................1 特性................................................................................................................................1 应用................................................................................................................................1 框图................................................................................................................................1 目录................................................................................................................................2 引脚配置.............................................................................................................................3 订购信息.............................................................................................................................3 引脚说明.............................................................................................................................4 绝对最大额定值.............................................................................................................5 直流电气特性.............................................................................................................6 电气特性.............................................................................................................................6 术语.............................................................................................................................................7 主时钟时序.............................................................................................................................8 数字音频接口.........................................................................................................................8 电源时序............................................................................................................................9 上电复位（POR）.............................................................................................................9 MPU 3 线接口时序......................................................................................................12 MPU 2 线接口时序......................................................................................................13 器件描述...................................................................................................................14 简介........................................................................................................................14 时钟方案................................................................................................................14 数字音频接口.............................................................................................................15 音频数据采样率....................................................................................................17 硬件控制模式.............................................................................................................18 软件控制接口.............................................................................................................20 寄存器映射........................................................................................................................................21 衰减控制................................................................................................................22 数字滤波器特性...................................................................................................25 DAC 滤波器响应...................................................................................................25 数字去加重特性...................................................................................................26 应用信息......................................................................................................................27 推荐的外部元件（PCM 音频）.............................................................................27 推荐的外部元件值.............................................................................................27 针对 PCM 数据格式的推荐模拟低通滤波器（可选）.....28 封装尺寸.............................................................................................................29 重要通知.............................................................................................................30 地址：.............................................................................................................................30