生产数据
WM8983
目录
描述.......................................................................................................1
FEATURES.............................................................................................................1
应用.....................................................................................................1
框图................................................ ................................................. 2
目录............................................... .......................................... 3
PIN CONFIGURATION...........................................................................................5
订购信息................................................ .................................. 5
引脚说明................................................ ................................................ 6
绝对最大额定值............................................... .......................... 7
推荐工作条件............................................... ...... 7
电气特性................................................ ...................... 8
术语.......................................................................................................... 13
扬声器输出总谐波失真与功率关系............................................. ......... 14
耗电量................................................ .................................... 16
典型SCENARIOS................................................................................................ 16
AUDIO PATHS概述............................................... ......................................... 17
系统时钟时序............................................... ............................................ 18
音频接口时序 - 主模式............................................ ............ 18
音频接口时序 - 从模式............................................ ................ 19
控制接口时序 - 3线模式.......................................... .......... 20
控制接口时序 - 2线模式.......................................... .......... 21
内部上电复位电路............................................. ............. 22
推荐的上电/掉电序列............................................ ...... 24
推荐的L / ROUT1使能序列............................................ ........ 27
设备描述................................................ ....................................... 28
介绍......................................................................................................... 28
输入信号路径............................................... ..................................................三十
模拟数字转换器（ ADC） ........................................... ............... 39
输入限制器/自动电平控制（ ALC ） ......................................... 44
输出信号路径............................................... .............................................. 56
3D立体声增强............................................... ..................................... 63
ANALOGUE OUTPUTS............................................................................................... 63
数字音频接口............................................... .................................... 80
音频采样率............................................... .............................................. 85
主时钟，锁相环（ PLL ） ......................................... ...... 85
COMPANDING............................................................................................................ 88
通用输入/输出............................................. ......................... 90
输出开关（插孔检测） ............................................ ......................... 90
控制INTERFACE.............................................................................................. 92
复位芯片............................................... ............................................... 93
使用的电源................................................ .................................................. .. 93
电源管理................................................ ............................................ 93
注册MAP...................................................................................................95
寄存器位按地址.............................................. ................................... 97
数字滤波器特性............................................... .............. 114
术语........................................................................................................ 114
DAC，滤波器响应............................................... ........................................ 115
ADC滤波器响应............................................... ........................................ 115
HIGHPASS FILTER................................................................................................... 116
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PD版本4.0 2006年11月
3
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
