Samsung SGH-C210 Bedienungsanleitung

GSMTELEPHONE

SGH-C210

GSMTELEPHONECONTENTS

1.Specification

2.Circuit Description

3. ExplodedViews and PartsList

4. ElectricalPartsList

5.BlockDiagrams

6.PCB Diagrams

7. FlowChartofTroubleshooting

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1. Specification

1-1

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EGSM900

Phase2DCS1800

Phase1PCS1900

Phase1

Freq.Band[MHz]

Uplink/Downlink 880~915

925~960 1710~1785

1805~1880 1850~1910

1930~1960

ARFCNrange0~124 &975~1023 512~885 512~810

Tx/Rxspacing 45MHz95MHz80MHz

Mod.Bit rate/

Bit Period 270.833kbps

3.692us270.833kbps

3.692us

TimeSlot

Period/FramePeriod 576.9us

4.615ms576.9us

4.615ms

Modulation 0.3GMSK0.3GMSK0.3GMSK

MS Power33dBm~5dBm30dBm~0dBm30dBm~0dBm

PowerClass 5pcl~19pcl0pcl~15pcl0pcl~15pcl

Sensitivity-102dBm-100dBm-100dBm

TDMAMux 8 8 8

Cell Radius35Km2Km2Km

Operating

Temperature-20°C~+50°C

1-1.GSMGeneralSpecification

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2. Circuit Description

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2-1.SGH-C210 RFCircuitDescription

2-1-1.RX PART

—ASM(F101)→SwitchingTx,RxpathforGSM900,DCS1800 and PCS1900 bylogic controlling.

—ASMControlLogicTruthTable

VC1VC2VC3

EGSMTX H L L

DCS/PCSTXLHL

PCS_RXL L H

—SawFILTER

ToconvertElectromagneticFieldWavetoAcousticWave and then pass thespecificfrequency band.

-GSMFILTER(F100)→For filtering thefrequency band between 925 and 960 MHz.

-DCS FILTER(F100)→For filtering thefrequency band between 1805 and 1880 MHz

-PCS FILTER(F102)→For filtering thefrequency band between 1930 and 1990 MHz.

—Crystal(X101)

To generatethe26MHzreference clockto drivethelogic and RF.

Afteradditionalprocess,thereference clockappliestotheU801 RxIQdemodulatorand TxIQmodulator.

Theoscillator forRXIQdemodulatorand Txmodulatorare controlled by serialdatatoselectchanneland usefast lock

modeforGPRShigh class operation.

—Si4210 (U102)

Thereceivesection integratesfourdifferential-input lownoise amplifiersLNAs supporting theGSM850,EGSM900,

DCS1800 and PCS1900 bands.TheLNA inputsarematchedtothe150 ohmbalanced-outputSAWfiltersthrough externa

LCmatching network.

AquadratureImage-rejectmixerdownconvertstheRFsignal toa200 KHzintermediatefrequency(IF).Themixeroutput is

amplifiedwithananalog programmablegainamplifier(PGA)that iscontrolledwiththeAGAIN.ThequadratureIF? ?

isdigitizedwith high resolution analog-to-digitalconverts(ADC).

TheADCoutput isdownconvertedto baseband withadigitalquadratureLOsignal.Digitaldecimation and FIRfilters

performdigitalfiltering and removeADCquantization noise,blockersand reference interferers.

After filtering,thedigitaloutput is scaledwithadigitalPGA,whichiscontrolledwiththeDGAIN.DACsdrive a

differentialIand Qanalog signalontotheBIP,BIN,BQPand BQN pinstointerface tostandardanalog-inputbaseband

ICs.

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CircuitDescription

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2-1-2.TX PART

Baseband IQsignalfedinto offsetPLL,thisfunction isincludedinsideofU801 chip.Thetransmit section ofU801

consistofanI/Qbaseband upconverter,an offsetphase-lockedloop (OPLL)and two 50 ohmoutputbuffersthatcan drive

anexternalPowerAmplifier(PA).Si4210 chip generatesmodulatorsignalwhich powerlevel isabout1.5dBmand fedinto

PowerAmplifier(U900).ThePAoutputpowerand power ramping arewell controlledbyAutoPowerControlcircuit.

WeuseoffsetPLL below.

Modulation Spectrum

200kHzoffset

30 kHzbandwidth

GSM-35dBc

DCS-35dBc

PCS-35dBc

400kHzoffset

30 kHzbandwidth

GSM-66dBc

DCS-65dBc

PCS-66dBc

600kHz~1.8MHzoffset

30 kHzbandwidth

GSM-75dBc

DCS-68dBc

PCS-75dBc

2-2.Baseband Circuitdescription ofSGH-C210

2-2-1.CSP2200B1

—Power Management

Sevenlow-dropoutregulatorsdesignedspecificallyforGSMapplicationspowertheterminaland helpensureoptimal

systemperformance and long batterylife.AprogrammableLDO provides supportfor1.8V,3.0VSIMs,while a self-

resetting,electronicallyfusedswitchsuppliespowertoexternalaccessories.Ancillarysupportfunctions,suchastwoLED

driversand twocall-alertdrivers,aidinreducing both boardarea and systemcomplexity.Afour-wireserial interface

unit(SIU)providesaccess tocontroland configuration registers.Thisinterface givesamicroprocessor full controlofthe

CSP2200B1and enables systemdesignerstomaximize bothstandby and talktimes.Error reporting isprovided via an

interruptsignaland statusregister.Supervisoryfunctions.including aresetgenerator,aninputvoltagemonitor,and a

thermalmonitor,supportreliablesystemdesign.Thesefunctionsworktogethertoensurepropersystembehaviorduring

start-up orinthe eventofafault condition(lowmicroprocessorvoltage,insufficientbatteryenergy,orexcessivedie

temperature).

—BatteryChargeManagement

Abatterychargemanagementblock,incorporating aninternalPMOSswitch,and an 8-bit ADC,providesfast,efficient

charging ofsingle-cell Li-Ion battery.Usedinconjunction witha current-limited voltagesource,thisblocksafely

conditionsnear-deadcellsand providestheoption ofhaving fast-charge and top-off controlledinternally orby thesystem's

microprocessor.

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CircuitDescription

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—BacklightLED Driver

ThebacklightLEDdriverisalow-side,programmable currentsource designedtocontrol thebrightness ofthekeyboard

illumination.LED1_DRViscontrolled viaLED1_[0:2]and can beprogrammedtosink from15mAto 60mAin 7.5mA

steps.LED2_DRViscontrolled viaLED2_[0:2]and can beprogrammedtosink from5mAto 40mAin 5mAsteps.

BothLEDdriversare capableofsinking theirmaximumoutputcurrentataworst-casemaximumoutputvoltageof0.6V.

Forefficientuse,theLEDsisconnected betweenthebatteryand theLED_DRVoutput.

—VibratorMotorDriver

Thevibratormotordriverisaindependentvoltageregulatorto driveasmall dcmotorthatsilentlyalertstheuserofan

incoming call.Thedriverisa3.3Vconstantsource whilesinking up to 140mAand controlledbyenablesignalofmain

chip.Forefficientuse and safety,thevibratormotorshould be connected betweentheregulatoroutputand theground.

2-2-2.Connector

—JTAGConnector

TridenthastwoJTAG portswhichareforARMcore and DSP core(DSP16000).Sothis systemhastwo portconnector

fortheseports.Pins'initialsforARMcore are'CP_' and pins'initialsforDSP core are'DSP_'.

CP_TDIand DSP_TDIsignalareusedforinputofdata.CP_TDO and DSP_TDO signalsareusedfortheoutputofthe

data.CP_TCKand DSP_TCKsignalsareusedforclock becauseJTAG communication isasynchronous.CP_TMSand

DSP_TMSsignalsaretestmodesignals.Thedifference betweentheseistheRESET_INTsignalwhichisforARMcore

RESET.

—Keypadconnector

Thisisconsisted ofkeyinterface pinsinthetrident,KEY_ROW[0~4]and KEY_COL[0~4].Thesesignalscomposethe

matrix.Result ofmatrixinformsthekeystatusto keyinterface inthetrident.Somepinsare connectedto varistor for

ESDprotection.And poweron/off keyis seperatedfromthematrix.

So poweron/off signal isconnectedwithCSP2200 toenableCSP2200.

NinekeyLEDusethe +VBATT supply voltage.These are connectedtoBACKLIGHTsignal intheCSP2200.

This signalenablesLEDswithcurrentcontrol.

—EMIFiltering

This systemusestheEMIFiltertoreduce noisefromLCDpart.Some controlsignalsare connectedtoLCD withoutEMI

filtering.

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CircuitDescription

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2-2-3. IFconnetor

It is24-pinconnector,and separatedintotwo parts.Oneisapowersupply partformainsystem.And theotheris

designedto useSDS,DEBUG,DLC-DETECT,JIG_ON,VEXT,VTEST,VF,and GND.Theyconnectedto powersupply

IC,microprocessorand signalprocessor IC.

2-2-4.Audio

AOUTAP,AOUTAN fromCSP2200 isconnectedtothespeakervia analog switch.AOUTBPand AOUTBNare connected

tothe ear-micspeakervia ear-jack.MICINand MICOUTare connectedtothemainMIC.And AUXINand AUXOUT

are connectedtotheEar-mic.

YMU762MA3isaLSI forportabletelephonethat iscapableofplaying high qualitymusicby utilizing FMsynthesizer

and ADPCMdecorderthatareincludedinthisdevice.

Asasynthesis,YMU762MA3isequipped 16 voiceswith different tones.Since thedevice iscapableofsimultaneously

generating up tosynchronouswiththeplay oftheFMsynthesizer,various sampled voicescan beusedas sound effects.

Since theplay dataofYMU762MA3areinterpretedatanytimethrough FIFO,thelength ofthedata(playing period)isnot

limited,sothedevice canflexiblysupportapplication suchasincoming call melody musicdistribution service.The

hardwaresequencerbuilt inthisdevice allowsplaying ofthe complexmusicwithoutgiving excessiveloadtotheCPUof

theportabletelephones.Moreover,theregistersoftheFMsynthesizercan beoperated directlyfor real timesound

generation,allowing,forexample,utilization ofvarious sound effectswhen using thegamesoftwareinstalledinthe

portabletelephone.

YMU762 includesaspeakeramplifierwith high rippleremovalratewhosemaximumoutput is550mW(SPVDD=3.6V).

Thedevice isalsoequippedwithconventionalfunction including avibartorand a circuit forcontrolling LEDs synchornous

withmusic.

Fortheheadphone,it isprovidedwithastereophonicoutput terminal.

Forthepurposeofenabling YMU762MA3to demonstrateitsfull capabilities,Yamahapurposeto use"SMAF:Synthetic

musicMobileApplication Format"asadatadistribution format that iscompatiblewithmultimedia.

Since theSMAFtakesastructurethatsetsimportance on thesynchronization betweensound and images,variouscontents

can bewrittenintoit including incoming call melody withwordsthatcan beusedfortraining karaoke,and commercial

channel thatcombinestexts,imagesand sounds,and others.ThehardwaresequencerofYMU762MA3 directlyinterprets

and playsblocksrelevant tosynthesis(playing music and reproducing ADPCMwithFMsynthesizer) thatareincludedin

datadistributedinSMAF.

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CircuitDescription

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2-2-5.Memory

This systemusesSHARP'smemory,LRS18B0.

It isconsisted of256Mbitsflashmemoryand 64MbitsSCRAM.Ithas16 bit dataline,D[0~15]whichisconnectedto

trident,LCDorCSP2200.Ithas23 bit address lines,A[1~23].Theyare alsoconnected.CP_CSROMENsignal,chip

selectsignal inthetrident,enableflashmemories.They usesupply voltages,VCCDand VCC_1.8A.

During wrting process,CP_WENislowand it enableswriting process toflashmemoryand SCRAM.During reading

process,CP_OENislowand it output information whichislocatedat the address fromthetrident intheflashmemory or

SCRAMto datalines.Eachchipselectsignalsinthetridentselectflashmemory orSCRAM.Reading orwriting

procedureisprocessedafterCP_WENorCP_OENisenabled.MemoriesuseFLASH_RESET,whichisbufferedsignalof

RESET fromCSP2200,forESDprotection.A[0]signalenableslowerbyteofSCRAMand UPPER_BYTE signalenables

higherbyteofSCRAM.

2-2-6.Trident

Trident isconsisted ofARMcore and DSP core.Ithas20K*16bitsRAM144K*16bitsROMintheDSP.Ithas

4K*32bitsROMand 2K*32bitsRAMintheARMcore.DSP isconsisted oftimer,onebit input/outputunit(BIO),JTAG,

EMIand HDS(HardwareDevelopmentSystem).ARMcoreisconsisted ofEMI,PIC(ProgrammableInterruptController),

reset/power/clock unit,DMAcontroller,TIC(TestInterface Controller),peripheralbridge,PPI,SSI(SynchronousSerial

Interface),ACCs(Asynchronouscommunicationscontrollers),timer,ADC,RTC(Real-TimeClock)and keyboardinterface.

DSP_AB[0~8],address linesofDSP core and DSP_DB[0~15],datalinesofDSP core are connectedtoCSP2200.A[0~20],

address linesofARMcore and D[0~15],datalinesofARMcore are connectedtomemory,LCDand YMU762.

ICP(InterprocessorCommunication Port)controlsthe communication betweenARMcore and DSP core.

CSROMEN,CSRAMENand CS1NtoCS4NintheARMcore are connectedtoeachmemory.WENand OENcontrol the

process ofmemory.ExternalIRQ(InterruptReQuest)signalsfromeach units,suchas,YMU,Ear-jack,Ear-mic and

CSP1093,needthe compatibleprocess.

SomePPIpinshasmany specialfunctions.CP_KB[0~9] receivethestatusfromkeyFPCB and areusedforthe

communicationsusing datalink cable(DEBUG_DTR/RTS/TXD/RXD/CTS/DSR).

And UP_CS/SCLK/SDI,controlsignalsforCSP2200 areoutputtedthrough PPIpins.Ithas signalportfor

charging(CHG_DET),SIM_RESET and FLIP_SNSwithwhichweknowsopen.closedstatusof folder.Ithas JTAG control

pins(TDI/TDO/TCK) forARMcore and DSP core.Itrecieves13MHz clockinCKIpinfromexternalTCXO and receives

32.768KHz clockfromX1RTC.ADC(Analog toDigitalConvertor) partreceivesthestatusoftemperature,batterytype and

battery voltage.And controlsignals(DSP_INT,DSP_IOand DSP_RWN) forDSP core areused.ItenablesmainLCD with

DSP IPpins.

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CircuitDescription

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2-2-7.CSP2200

CSP2200 isintegratedthetiming and controlfunctionsforGSM2+mobile application withtheADCand DACfunctions,

and powermanagementblock.TheCSP2200 interfacestothetrident,via a 16-bit parallel interface.Itservesasthe

interface thatconnectsaDSP totheRFcircuitryinaGSM2+mobiletelephone.DSP canload 148 bitsofburstdata

intoCSP2200’

sinternalregister,and programCSP2200’

sevent timing and controlregisterwiththe exact timetosend the

burst.Whenthetiming portion ofthe event timing and controlregistermatchestheinternalquarter-bit counterand internal

frame counter,the148 bitsintheinternalregisterareGMSKmodulatedaccording toGSM2+standards.Theresulting

phaseinformation istranslatedintoIand Qdifferentialoutputvoltagesthatcan be connected directlytoanRFmodulator

at theTXOPand TXON pins.TheDSP isnotifiedwhenthetransmission iscompleted.For receiving baseband data,a

DSP can programCSP2200’

sevent timing and controlregisterwiththe exact timetostartreceiving Iand Qsamples

through TXIPand TXINpins.Whenthat timeisreached,the controlportion ofthe event timing and controlregisterwill

start thebaseband receivesection converting Iand Qsamplepairs.Thesamplesarestoredinadouble-bufferedregister

until theregistercontains32 samplepairs.CSP2200 then notifiestheDSP which has sampletimetoreadtheinformation

outbeforethenext32 samplepairsarestored.Thevoice band ADCconverterissuesaninterrupt totheDSP wheneverit

finishesconverting a16-bit PCMword.TheDSP thenreadsthenewinputsample and simultaneouslyloadsthevoice

band outputDACconverterwithanewPCMoutputword.Thevoice band outputcan be connected directlytoaspeaker

viaAOUTAN and AOUTAPpinsand be connectedtoaEar-micspeakerviaAOUTBNand AOUTBPpins.

There are7LDOswhicharepowersourcesofmicroprocessor,LCD,etc.These7LDOsoutputareprogrammable.

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3. ExplodedViewand Parts List

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3-1.Exploded View

QSP01

QMO01

QCR31

QMI01

QMP01

QAN01

QRE01

QBA01

QKP01

QRF01

QFR01

QME01

QLC01

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Explodedviewand PartList

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3-2.PartsList

Location

NO.DescriptionSEC CODERemark

QFR01 FRONTCOVERGH75-06802A

QKP01 KEYPADGH75-06998A

QSP01 SPEAKER3001-001760

QMO01 MOTORDCGH31-00163A

QMP01 PBAMAINGH92-02142A

QLC01 LCDGH07-00701A

QME01 UNITMETALDOMEGH59-02090A

QMI01 MICROPHONEASSYGH30-00186A

QAN01 INTENNAGH42-00552A

QRE01 REARCOVERGH75-06804A

QRF01 TAPEPCRFGH74-14175A

QCR31 SCREW6001-001795

QBA01 BATTERYGH43-01817A

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