WM9090
目录
生产数据
描述....................................................................................................... 1
FEATURES............................................................................................................. 1
应用..................................................................................................... 1
框图................................................ ................................................. 1
目录............................................... .......................................... 2
引脚配置................................................ ........................................... 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............................................................................................................. 9
性能曲线................................................ ............................................. 10
典型性能................................................ .................................. 11
耗电量................................................ ............................................ 11
音频信号路径框图.............................................. ....................... 12
控制接口时序............................................... .......................... 13
设备描述................................................ ....................................... 14
INTRODUCTION.......................................................................................................... 14
输入信号路径............................................... .................................................. 15
线路输入............................................................................................................................................ 16
输入PGA启用................................................................................................................................ 16
输入PGA配置................................................................................................................ 17
输入PGA音量控制............................................................................................................. 17
输出信号路径............................................... ............................................... 20
输出信号路径ENABLE .......................................................................................................... 20
音箱混音器控制................................................................................................................... 21
扬声器的输出音量控制.............................................. .................................................. 22
的扬声器升压MIXER CONTROL...................................................................................................... 22
耳机混音器控制............................................................................................................. 23
耳机输出音量控制.............................................. ............................................ 24
自动增益控制（ AGC ） ............................................ ............................. 27
AGC控制........................................................................................................................................ 27
AGC ANTI- CLIP ........................................................................................................................................ 27
AGC功率限制............................................................................................................................ 29
ANALOGUE产出................................................ ............................................... 31
扬声器输出配置............................................... .................................................. 31
耳机输出配置............................................... ............................................ 32
时钟控制................................................ ................................................ 32
控制接口................................................ .............................................. 34
控制写序列器............................................... ................................. 37
启动序列....................................................................................................................... 37
编程序列.............................................................................................................. 38
默认序列........................................................................................................................... 40
电顺序和POP抑制控制.................................. 43
输入VMID CLAMPS .............................................................................................................................. 43
耳机启用/禁用............................................................................................................. 43
推荐的耳机启动顺序............................................. .......................... 45
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PD ， 2010年11月，修订版4.1
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
