CP2524 用户手册
©Copyright 2008 by Chiphomer Technology Limited. Confidential
Date:03/14/2012 Page 3 of 13
目录
CP2524 ................................................................................................................................... 1
用户手册..................................................................................................................................1
1 产品简介...............................................................................................................................2
目录..................................................................................................................................3
图目录 .............................................................................................................................. 4
2.引脚 ...................................................................................................................................5
2.1 引脚排列及俯视图 .....................................................................................................5
2.2 引脚说明.................................................................................................................... 5
3.工作原理...............................................................................................................................7
3.1 电容性触摸感应 ......................................................................................................... 7
3.2 电容数字转换(CDC)..............................................................................................7
3.3 按键判决.................................................................................................................... 7
3.4 基线跟踪和漂移补偿 ..................................................................................................7
4 功能描述.............................................................................................................................. 9
4.1 初始化 .......................................................................................................................9
4.2 工作状态.................................................................................................................... 9
4.3 掉电 ...........................................................................................................................9
4.4 按键状态输出............................................................................................................. 9
4.5 邻键抑制(ASS)功能 .............................................................................................. 9
4.6 长时间按键触发解除功能........................................................................................... 9
5 典型应用............................................................................................................................ 10
6 电气特性............................................................................................................................ 11
7 封装 ...................................................................................................................................12
8 订购信息............................................................................................................................ 13