生产数据
WM9712L
可变速率音频/采样率转换............................... 37
TOUCHPANEL接口................................................ ................................ 38
工作原理 - 四线TOUCHPANEL ..................................... 38
工作原理 - 五线TOUCHPANEL ........................................ 40
控触摸屏数字化仪.............................................. ......... 42
辅助ADC输入............................................... ..................................... 47
电池测量采用BMON / AUX3 PIN ....................................... 47
电池报警和模拟比较.................................... 48
GPIO和中断控制.............................................. ...................... 51
AC97数据和控制接口............................................. ............ 58
接口协议................................................ ............................................ 58
接口时序................................................ .................................................. 59
注册MAP...................................................................................................62
寄存器位按地址.............................................. .................................... 63
应用信息................................................ ......................... 71
推荐的外部元件............................................... ............ 71
线路输出............................................................................................................. 72
交流耦合耳机输出............................................. .......................... 73
直流耦合（无盖），耳机输出........................................... ........ 73
BTL扬声器输出时............................................... .................................... 74
联合耳机/ BTL耳机扬声器............................................ ................. 74
联合耳机/单端耳机扬声器......................................... 74
JACK INSERT检测............................................... ......................................... 75
叉簧检测................................................ ....................................... 75
包装图 - QFN .............................................. ................................. 76
包装图 - TQFP .............................................. .............................. 77
重要通知................................................ .......................................... 78
ADDRESS:................................................................................................................... 78
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PD版本4.0 2003年12月
3
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
