WM8750BL
目录
预生产
描述................................................................................................................. 1
特点...................................................................................................................... 1
应用............................................................................................................... 1
框图........................................................................................................... 1
目录............................................... .................................................. 2 ..
PIN CONFIGURATION..................................................................................................... 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
典型PERFORMANCE.............................................................................................. 8
耗电量............................................................................................................... 8
输出驱动......................................................................................................................... 9
输出PGA 'S LINEARITY......................................................................................................... 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
内部上电复位电路............................................. ........................ 15
设备描述................................................ ................................................. 16
引言...........................................................................................................................16
输入信号路径...................................................................................................................16
自动电平控制（ ALC ） ............................................ ............................................ 23
输出信号路径...............................................................................................................27
ANALOGUE OUTPUTS.................................................................................................................32
使能输出..........................................................................................................34
耳机SWITCH.................................................................................................................34
热关断............................................................................................................... 35
耳机输出................................................................................................................36
数字音频接口.......................................................................................................37
音频接口控制...................................................................................................41
时钟和样品RATES...............................................................................................43
控制INTERFACE................................................................................................................45
电源SUPPLIES.......................................................................................................................46
电源管理..............................................................................................................46
注册MAP............................................................................................................. 49
数字滤波器特性............................................... ........................... 50
术语............................................................................................................................50
DAC，滤波器响应..........................................................................................................51
ADC滤波器响应..........................................................................................................52
去加重滤波器响应............................................. ............................................ 53
HIGHPASS FILTER.......................................................................................................................54
应用信息................................................ ................................... 55
推荐的外部元件............................................... ............................ 55
LINE INPUT CONFIGURATION....................................................................................................56
麦克风输入配置............................................... .................................... 56
尽量减少杂音AT模拟输出........................................... ............. 56
电源管理的例子............................................... ........................................... 57
重要通知................................................ .................................................. .. 59
ADDRESS......................................................................................................................................59
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预生产版本3.3 2007年1月
2
QQ：2880707522 复制
