软胎压力监控系统TPMS应用参考指南(1)

飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004轮胎压力监控系统(TPMS)应用参考指南TransportationandStandardProductsGroup系统和应用工程Slide2飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004目标内容•飞思卡尔UHF发送器和接收器解决方案•TPMS系统概况•飞思卡尔参考平台•TPMS参考解决方案应用注意事项•常见客户问题本文将提供更多TPMS平台应用注意事项和指南，从而加快客户设计进度Slide3飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004接入和远程控制-发送器和接收器RF接收器•MC33594RF发送器•MC33493微控制器/发送器•68HC908RF2飞思卡尔链接:接入和远程控制-发送器和接收器Slide4飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004MC33594(TPMS参考接收器AN1951)(PLL调谐UHFASK/FSK接收器，用于数据传输应用。OOK中无数据管理器。)飞思卡尔链接：MC33594产品小结页面RF接收器、发送器和MCU+RF发送器MC33493PLL调谐低功率UHF发送器飞思卡尔链接:MC33493产品小结页面68HC908RF2(TPMS参考接收器AN1951)8-位微控制器终端M68HC08系列，成本低、性能高，內置PLL调谐低功率UHF发送器。飞思卡尔链接：68HC908RF2产品小结页面Slide5飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS(轮胎气压监控系统)MC33594AndMC68HC908KX8飞思卡尔链接：轮胎气压监控系统(演示平台)TPMS功能芯片集远程传感模块（RSM）压力传感器温度传感器功率控制定时开机器内部时钟生成器计时器低压检测2.1-3.6V电池RKE和TPMS接收器Slide6飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-发送器传感器：MPXY80x0也称为Daytona。它是表面经过微机械加工的电容性机电系统（MEMS）压力传感器。Daytona包括压力变频器、正温度系数集成电阻温度传感器和生产校准的压力和温度8位数字输出所需的全部线路，所有应用均在一个冲模上提供。MPXY8020/8040压力和温度传感器Slide7飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-发送器MCU+RF:MC68HC908RF2也称为RF2，由两个蕊片组成。一个是2KB闪存HC08MCU（与MC68HC908RK2部件号相同）；另一个是RF发送器，能在几百米的有效距离内传输数字数据（与MC33493部件号相同，也称为Tango3）。MC68HC908RF2闪存MCU和UHF发送器Slide8飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-接收器RF接收器:MC33594也称为Romeo2，是兼容RF2的接收器。Romeo2能够接收并解调Manchester编码数据，并能在普通的串行外围接口（SPI）上输出本数据。MC33594UHF接收器Slide9飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-接收器MCU:MC68HC908KX8也称为KX8，该MCU是本演示随机选择的。飞思卡尔提供大量适用于汽车的MCU选项。在生产系统中，MC9S12DP256还可以替代KX8，提供5个控制器局域网（CAN）接口，快速地将TPMS功能转移到次要任务中。MC68HC908KX8闪存MCU（许多飞思卡尔MCU可以替换）Slide10飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-发送器AntennaandmatchingcomponentXtalclk&modulatorcomponent天线和匹配组件Xtalclk和调节器组件图2：TPMS轮胎模块示意图Slide11飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-发送器Tx示意图特征¾运行外部组件少；¾MCU运行不需要晶体，因为RF2包含一个内部时钟生成器（注意管脚21和22都处于打开状态）；¾发送器将晶体用作锁相环（PLL）的参考振荡器；¾13.56MHz晶体提供运营商级的传输频率（433.92MHz）；¾已经增加天线的匹配网络。Slide12飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-发送器天线MC68HC908RF2传感器电池晶体图3：TPMS轮胎模块平面图外缘模块内缘图4：轮胎模块安装位置Slide13飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004Tx模块实施¾模块板使用印制天线；¾所有组件都焊接到模块板一端；¾Tx板应安装在轮胎内缘；¾发送器板用3颗螺丝安装在轴承座上；¾使用硬环氧保护轴承座边缘的安全，使用尼龙带可以提供更好的安全保护。TPMS参考设计(AN1951D)-发送器Slide14飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-接收器PC的RS232接口供电天线及匹配组件MCU&LED显示图5：TPMS接收器模块示意图Slide15飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)-接收器图6：TPMS接收器模块平面图Slide16飞思卡尔SemiconductorConfidentialProprietary.飞思卡尔™andthe飞思卡尔logoaretrademarksof飞思卡尔Semiconductor,Inc.Allotherproductorservicenamesarethepropertyoftheirrespectiveowners.©飞思卡尔Semiconductor,Inc.2004TPMS参考设计(AN1951D)Slide17飞思卡尔SemiconductorConfidentia