WM8971L
目录
先进的信息
描述.......................................................................................................1
FEATURES.............................................................................................................1
应用.....................................................................................................1
框图................................................ ................................................. 1
目录............................................... .......................................... 2
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
PGA输出线性度............................................... .......................................... 9
耳机输出THD与功率关系............................................. ............ 10
扬声器输出总谐波失真与功率关系............................................. ................. 11
耗电量................................................ .................................... 12
信号时序要求............................................... ...................... 13
系统时钟时序............................................... ............................................. 13
音频接口时序 - 主模式............................................ ............. 13
音频接口时序 - 从模式............................................ ................ 14
设备描述................................................ ....................................... 17
INTRODUCTION.......................................................................................................... 17
输入信号PATH.................................................................................................. 17
自动电平控制（ ALC ） ............................................ ........................... 23
输出信号路径............................................... ............................................... 26
ANALOGUE产出................................................ ............................................... 31
使能输出............................................... .......................................... 33
耳机开关................................................ ............................................... 33
热关断................................................ .............................................. 35
耳机输出................................................ ............................................... 35
数字音频接口............................................... ....................................... 36
音频接口控制............................................... ................................... 39
时钟和采样率.............................................. ................................ 40
控制接口................................................ .............................................. 42
供电器..................................................................................................... 43
电源管理................................................ ............................................. 44
注册MAP...................................................................................................46
数字滤波器特性............................................... ................ 47
TERMINOLOGY........................................................................................................... 47
DAC，滤波器响应............................................... .......................................... 48
ADC滤波器响应............................................... .......................................... 49
去加重滤波器响应............................................. ........................... 50
高通滤波器..................................................................................................... 51
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AI版本3.0 2004年3月
2
QQ：2881677436 复制
