一份笔记本电脑电路

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1、54321R15BREV:ASystemIMVPIVVRDDRVRDC/DCDD(2.5V)(2.5V)CPUPentiumMClockBGADDRBGADDRThermalProcessorgenerator14.318MHzCHANLACHANLB478uFCPGASensorICS95081264bit64bitPSB400MHz,64BitCRTIntel855PMConnectorVGAAGP4X,66MHz,32bitMCH266DDRSDRAM,64bitATI593uFCBGALCDM10-PCHeaderSODIMM0(9

2、.2H)CHubInterface66MHz,266MB/sUSB0USB1USB2(HI1.0)SODIMM1(5.2H)ATA100,16bitHDUSB2.0DDRPARALLELTERMINATION33MHzPCI,32bitICH4-M421BGAATA100,16bitAC9712.288MHzDVDLPC,33MHz,4bitMINIPCICARDBUS24.576MHzWIRELESSLAN802.11bR5C551Type-IIIBIOSSMC/KBCLAN_PHY32.768KHzAC97CODECMDCBB4Mbit

3、8MHz25MHzSIGMATEL24.576MHzCON.M3885782562EMATAC9752LQFP48POWERSWITCHR5532VAMPRJ11CAVPPCAVCCType-IIFANCON.ScanKBRJ45MICAMPTPA0202SLOT1394CON.LMV358SPEAKERSINTJACKAASPDIFLINEOUTINTMICJACKJACKTitleBlockDiagramSizeDocumentNumberRevBADate:Monday,September08,2003Sheet15of65

4、432154321SCHEMATICANNOTATIONSANDBOARDINFORMATIONVoltageRails(SYSTEM)Page3CPUPage48POWER_2.5V+VDCPrimaryDCsystempowersupply(10to21V)Page4CPU_POWERPage49POWER_1.8V/AGPCORE+VCC_CORECorevoltageforprocessorDPage5CPU_THERMALPage50POWER855PMVR&VCCP+VCCP1.05VrailforprocessorI/ODPa

5、ge6855PMMCH-1Page51POWERIMVP4VRController+V1.2S_MCH1.2Vfor855PMCORE(offinS3-S5)+V1.25SDDRTerminationvoltage(offinS3-S5)Page7855PMMCH-2Page52POWER3V/5V(LM2645)+V1.5S1.5Vswitchedpowerrail(offinS3-S5)Page8855PM_POWERPage53POWER1.5V/1.25V+V1.5ALWAYS1.5ValwaysonpowerrailPage9DD

6、RSO-DIMMPage54POWER_MOSFET_SWITCH+V1.51.5Vpowerrail(offinS4-S5)Page10DDRtermination-SPage55PM_PWROKGENERATION+V1.8S1.8Vswitchedpowerrail(offinS3-S5)+V2.52.5VpowerrailforDDRPage56POWERDIAGRAMPage11DDRtermination-P+V3.3ALWAYS3.3Valwaysonpowerrail+V3.33.3Vpowerrail(offinS4-S5

7、)Page12DDRDecoupling+V3.3S3.3Vswitchedpowerrail(offinS3-S5)Page13CLOCK_Generator+V5_ALWAYS5.0ValwaysonpowerrailPage14GPU+V55.0Vpowerrail(offinS4-S5)Page15GPU_MAMORYI/F+V5S5.0Vswitchedpowerrail(offinS3-S5)+V12S12.0Vswitchedpowerrail(offinS3-S5)Page16GPU_POWERPage17Terminati

8、on-ACCPage18Termination-BVoltageRails(VGA)Page19MEMORYChannal-APage20MEMORYChannal-BAGP_C