预生产
WM8986
目录
描述.......................................................................................................1
FEATURES.............................................................................................................1
应用.....................................................................................................1
框图................................................ ................................................. 2
目录............................................... .......................................... 3
PIN CONFIGURATION...........................................................................................4
订购信息................................................ .................................. 4
引脚说明................................................ ................................................ 5
绝对最大额定值............................................... .......................... 6
推荐工作条件............................................... ...... 6
电气特性................................................ ...................... 7
术语.......................................................................................................... 11
AUDIO PATHS概述............................................... .................................. 12
信号时序要求............................................... ...................... 14
系统时钟时序............................................... ............................................ 14
音频接口时序 - 主模式............................................ ............ 14
音频接口时序 - 从模式............................................ ................ 15
控制接口时序 - 3线模式.......................................... .......... 16
控制接口时序 - 2线模式.......................................... .......... 17
内部上电复位电路............................................. ............. 18
推荐的上电/掉电序列............................................ ...... 20
设备描述................................................ ....................................... 22
引言......................................................................................................... 22
输入信号路径............................................... .................................................. 23
输出信号路径............................................... .............................................. 31
3D立体声增强............................................... ..................................... 37
ANALOGUE OUTPUTS............................................................................................... 37
数字音频接口............................................... .................................... 50
音频采样率............................................... .............................................. 54
主时钟，锁相环（ PLL ） ......................................... ...... 55
COMPANDING............................................................................................................ 57
通用输入/输出............................................. ......................... 59
输出开关（插孔检测） ............................................ ......................... 60
控制INTERFACE.............................................................................................. 61
复位芯片............................................... ............................................... 62
使用的电源................................................ .................................................. .. 62
电源管理................................................ ............................................ 63
注册MAP...................................................................................................64
寄存器位按地址.............................................. ................................... 66
DAC数字滤波器的特性.............................................. ........ 79
术语.......................................................................................................... 79
DAC，滤波器响应............................................... .......................................... 80
5 - BAND EQUALISER .............................................. .................................................. .. 81
应用信息................................................ ......................... 85
推荐的外部元件............................................... ........... 85
包图................................................ .......................................... 86
重要通知................................................ .......................................... 87
地址： .................................................................................................................. 87
w
PP ，版本3.1 ， 2007年2月
3
QQ：2881677436 复制
