WM8980
目录
产品预览
描述.......................................................................................................1
FEATURES.............................................................................................................1
应用.....................................................................................................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
术语............................................................................................................ 9
耗电量................................................ .................................... 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
控制接口时序 - 3线模式.......................................... .......... 13
控制接口时序 - 2线模式.......................................... .......... 14
设备描述................................................ ....................................... 15
引言......................................................................................................... 15
输入信号路径............................................... .................................................. 17
模拟数字转换器（ ADC） ........................................... ............... 23
输入限制器/自动电平控制（ ALC ） ......................................... 27
输出信号路径............................................... .............................................. 31
3D立体声增强............................................... ..................................... 37
ANALOGUE OUTPUTS............................................................................................... 38
视频缓冲器.......................................................................................................... 53
数字音频接口............................................... .................................... 54
音频采样率............................................... .............................................. 61
主时钟，锁相环（ PLL ） ......................................... ...... 61
通用输入/输出............................................. ......................... 63
输出开关（插孔检测） ............................................ ......................... 64
控制INTERFACE.............................................................................................. 66
复位芯片............................................... ............................................... 67
使用的电源................................................ .................................................. .. 67
电源管理................................................ ............................................ 68
注册MAP...................................................................................................70
数字滤波器特性............................................... ................ 72
术语.......................................................................................................... 72
DAC，滤波器响应............................................... .......................................... 73
ADC滤波器响应............................................... .......................................... 73
HIGHPASS FILTER..................................................................................................... 74
5 - BAND EQUALISER .............................................. .................................................. 75 ..
应用信息................................................ ............................ 79
推荐的外部元件............................................... ........... 79
包图................................................ .......................................... 80
重要通知................................................ .......................................... 81
地址： .................................................................................................................. 81
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PP版本1.6 2005年1月
2
QQ：2880707522 复制
