CP2526 用户手册
©Copyright 2008 by Chiphomer Technology Limited. Confidential
Date: 04/12/2010 Page 3 of 13
目 录
CP2526.......................................................................................................................................... 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