WM8956
目录
生产数据
描述....................................................................................................... 1
特点............................................................................................................ 1
APPLICATIONS..................................................................................................... 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
推荐工作条件............................................... ...... 5
电气特性................................................ ..................... 6
输出PGA增益............................................... ............................................... 9
典型功耗............................................... ..................... 10
信号时序要求............................................... ..................... 11
系统时钟时序............................................... ............................................... 11
音频接口时序 - 主模式............................................ .............. 11
音频接口时序 - 从模式............................................ .................. 12
控制接口时序 - 2线模式.......................................... ............. 13
内部上电复位电路............................................. ............. 14
设备描述................................................ ...................................... 16
引言............................................................................................................ 16
输入信号路径............................................... .................................................. ... 17
输出信号路径............................................... ................................................. 25
ANALOGUE产出................................................ ................................................. 31
使能输出............................................... ............................................ 34
耳机输出................................................ ................................................. 35
D类扬声器输出.............................................. ...................................... 36
卷更新...................................................................................................... 37
耳机插孔检测............................................... ........................................ 39
热关断................................................ ................................................ 41
通用输入/输出............................................. ........................... 41
数字音频接口............................................... ......................................... 42
音频接口控制............................................... ..................................... 46
时钟和采样率.............................................. .................................. 49
控制INTERFACE................................................................................................. 56
电源管理................................................ ............................................... 56
寄存器映射................................................ .................................................. 59
寄存器位按地址.............................................. ...................................... 60
数字滤波器特性............................................... ............... 72
DAC,滤波器响应............................................... ............................................ 72
去加重滤波器响应............................................. ............................. 74
应用信息................................................ ........................ 75
推荐的外部元件............................................... ............. 75
封装图................................................ ......................................... 78
重要通知................................................ ......................................... 79
地址: ..................................................................................................................... 79
修订历史................................................ ........................................... 80
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PD , 2011年11月,修订版4.1
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