GPS+北斗 N303双模导航定位模块用户手册

5 注意事项 .................................................................................................................................17
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5.1 天线供电.........................................................................................................................17 5.2 静电防护.........................................................................................................................18 5.3 PCB设计建议 .................................................................................................................18
4 电气和温度特性 .....................................................................................................................15
4.1 模块直流特性.................................................................................................................15 4.1.1 极限工作条件.............................................................................................................15 4.1.2 推荐工作条件.............................................................................................................16
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N303 双模导航定位模块 用 户手册
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Rev.1.0
N303双模导航定位模块用户手册
文档 修订记录
版本 V0.1
修订日期 2014-04
2 模块接口说明 ...........................................................................................................................8
2.1 硬件接口...........................................................................................................................8 2.1.1 电源...............................................................................................................................8 2.1.2 天线接口.......................................................................................................................8 2.1.3 复位接口.......................................................................................................................8 2.1.4 1PPS信号接口 ..............................................................................................................8 2.1.5 UART接口.....................................................................................................................8
1.1 概述...................................................................................................................................5 1.2 产品特性...........................................................................................................................5 1.3 性能指标...........................................................................................................................6 1.4 应用...................................................................................................................................6 1.5 功能框图和典型应用 .......................................................................................................7
4.2 焊接温度曲线.................................................................................................................16 4.2.1 预热阶段.....................................................................................................................16 4.2.2 恒温阶段.....................................................................................................................16 4.2.3 熔锡阶段.....................................................................................................................16 4.2.4 冷却阶段.....................................................................................................................16 4.2.5 推荐炉温曲线如下图： .............................................................................................17
1.5.1 功能框图.......................................................................................................................7 1.5.2 典型应用.......................................................................................................................7
文档新 建
描述
Techtotop Confidential
Copyright © 2008-2014 All Rights Reserved.
Page 2 of 20
Rev.1.0
N303双模导航定位模块用户手册
目录
1 功能描述 ...................................................................................................................................5
3 设计特性 .................................................................................................................................13
3.1 管脚定义.........................................................................................................................13 3.2 机械尺寸.........................................................................................................................14 3.3 推荐封装.........................................................................................................................15
2.2 软件接口协议...................................................................................................................9 2.2.1 语句格式和内容...........................................................................................................9 2.2.2 输出语句.....................................................................................................................10 2.2.3 输入语句.....................................................................................................................10