FM收音机 原理图

《FM收音机 原理图》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、54321TMSTMP3410-EVK-D-MajorEvaluationKitREVISIONHISTORYREV.A-05-06-02-InitialReleaseDDBlockDiagramMAINMEMORYPage4DISPLAYPage5LiquidNANDFLASHCrystalVoltagex2DisplayGeneration(LCD)CapacitorsSD/MMCSocketBacklightLEDSmartMediaSocketBUTTONSPage6CCButtonMatrixFMTUNERPage7STMP3410FMTu

2、nerUSB&AUDIOPage2MicrophoneSTMP3410Page3BootModeUniversalSerialBus(USB)HostComputerSelectConnectorDCDCHeadphoneHeadphonesConverterConnectorComponentsConfigurationLINEINJackBBDEVELOPMENTMODE24.576MHzcrystalThismodeisforMP3developmentusingtheDebugportandanexternalpowersupply.SWIT

3、CHPOWER&DEBUGPage8SWITCHPOSITIONBatteryMODESELECTDEBUGVoltageRegulatorsDEMONSTRATIONMODEThismodeisfornormalMP3playbackorbatteryDebugPortlifemeasurementsusingaAAAbattery.SigmaTel,Inc.3815CapitalofTexasHwy.Suite300SWITCHAustin,TX78704SWITCHtel:(512)381-3700APOSITIONAwww.sigmatel.

4、comNOTE:Donotusethisschematicasareference-thisisnotMODESELECTDEMOthelatestcircuit!PleaseseetheSTMP3XXXReferenceSTMP3410-EVKSchematicsSchematicsforthelatestcircuitry.TitleSTMP3410-EVKOverviewSizeThisdesignisthepropertyofSigmaTel,Inc.ItisofferedRevBonan"asis"basis,andcarriesnoimp

5、liedwarranty.ADate:Tuesday,October01,2002Sheet1of95432154321HeadphoneUSBConnectorHP_GND_AcanbeusedasC32anantennafordesignswithL4USBJackPins5and6arepinsconnectingtotheUSBconnectoroutershield600Ohms@100MHz220uFanFMTunerJ12HP_CONN_R4V+LINE_OUT_R3IND-0805CAP7243InordertomaximizeESD

6、immunity,theindustrialdesignplasticsshould4HP_GND_ADC33HP_GND_AexposetheUSBConnectoraslittleaspossible.D5L51600Ohms@100MHz220uFCUISJ-3525NHP_CONN_L+4VLINE_OUT_LL13,L14,R80,andR81areplaceholdersforoptionalferritesthatcanbepopulatedIND-0805CAP7243LAYOUTNOTE:LAYOUTNOTE:forESDimmun

7、ityifnecessary.Iftheyarenotrequired,populatea0ohmresistor.HP_GND_AC34C35R20R210.01uF0.01uF521PlugInsertedL6100100CAP-0603CAP-06034USBDataseriesresistorsR18andR19canbe24-33Ohms600Ohms@100MHzRES-0603RES-0603This341DirectionIND-0805R22R236516163RES-0603RES-06032J4BoardEdgeMolex670

8、68TP1USB_5VBOTTOMVIEWTOPVIEW51R18R80VBUSCUISTACKSJ-352