Abstract: The DS1669/DS1869 is a 64-position digital potentiometer with "up/down" control, which allows adjustment in a manner similar to mechanical potentiometers. The device has three modes of operation which allow control either from a single pushbutton, double pushbutton, or control from a microprocessor or microcontroller, depending on how the chip is hardwired into the circuit. On power-up, the potentiometer "senses" the configuration it is in and switches to the appropriate mode of operation. Configuration is critical, as it is possible to attempt to configure the device for one mode of operation, but actually force it into the wrong mode. This application note details the fine details of configuration to avoid this sort of application problem. 你所查询的应用笔记提供Acrobat PDF格式： APPLICATION NOTE 168:DS1669/DS1869 Digital Potentiometer Modes of Operation (PDF, 116kB) 免费Acrobat PDF阅读软件可从以下网站获得： http://chinese-s.adobe.com/products/acrobat/readstep2.html 相关型号   APP 168: Jan 08, 2002 DS1669 Dallastat数字电位器 完整的数据资料 (PDF, 180kB) DS1869 3V、Dallastat数字电位器 完整的数据资料 (PDF, 144kB) 免费样品 自动更新 需要自动接收最新发布的应用笔记吗？请订阅EE-Mail™ (English only)。 我们期待您的反馈！ 喜欢？不喜欢？有待改善？或为我们提供建议？请与我们联系 — 我们将根据您的意见或建议改善我们的工作。 网页评价或提供建议   下载，PDF格式 (116kB)  AN168, AN 168, APP168, Appnote168, Appnote 168