FEATURESAPPLICATIONS
描述
FUNCTIONALBLOCKDIAGRAM
TSC2301
SLAS371D–SEPTEMBER2002–REVISEDAUGUST2004
PROGRAMMABLETOUCHSCREENCONTROLLER
WITHSTEREOAUDIOCODEC
•
SPI™SerialInterface
•
PersonalDigitalAssistants
•
TouchScreenController
•
CellularPhones
–4-wiretouchscreeninterface
•
MP3Players
–InternalDetectionofScreenTouchand
•
InternetAppliances
KeypadPress
•
Smartphones
–TouchPressureMeasurement
–RatiometricConversion
–programmable8-,10-or12-bitresolution
TheTSC2301isahighlyintegratedPDAanalog
–ProgrammableSamplingRatesUpto125
interfacecircuit.itcontainsacomplete12-bita/d
kHz
resistivetouchscreenconverter(adc)包括
驱动程序,touchpressuremeasurementcapability,
–directbatterymeasurement(0to6v)
keypadcontroller,and8-bitd/aconverter(dac)
–on-chiptemperaturemeasurement
outputforlcdcontrastcontrol.thetsc2301offers
–4-由-4keypadinterfacewith
programmableresolutionof8,10,and12bitsand
programmablede-bounceandkey
samplingratesupto125kHztoaccommodate
掩蔽
differentscreensizes.thetsc2301interfacestothe
–IntegratedTouchScreenProcessor
hostcontrollerthroughastandardSPIserial
ReducesHostCPUInterruptsandOverhead
接口.
–InternalTimingControlWithProgrammable
thetsc2301featuresahigh-performance20-有点,
DelaysandAveraging
48-kspsstereoaudiocodecwithhighlyintegrated
•
StereoAudioCodec
analogfunctionality.theaudioportionofthe
–20-bitdelta-sigmaadc/dac
tsc2301containsmicrophoneinputwithbuilt-入点
预-ampandmicrophonebiascircuit,anauxiliary
–dynamicrange:98db
stereoanaloginput,astereoline-leveloutput,一个
–SamplingRateUpto48kHz
differentialmonoline-leveloutput,andastereo
–I
2
SSerialInterface
headphoneamplifieroutput.thedigitalaudiodatais
–stereo16-
Ω
HeadphoneDriver
transferredthroughastandardI
2
sinterface.afully
•
fullpower-downcontrol
programmablePLLforgeneratingaudioclocksfroma
widevarietyofsystemclocksisalsoincluded.
•
8-bitcurrentoutputdac
•
开启-chipcrystaloscillator
TheTSC2301alsoofferstwobatterymeasurement
inputscapableofbatteryvoltagesupto6v,同时
•
programmablebass/中音/trebleeq
operatingatasupplyvoltageofonly2.7v.italsohas
EffectsProcessing
anon-chiptemperaturesensorcapableofreading
•
6GPIOPins
0.3°cresolution.thetsc2301isavailablein64-铅
•
single2.7-vto3.6-vsupply
tqfp,and120-ballvfbgapackages.
•
64-pintqfppackage
uspatentno.6246394
•
120-ballmicrostarjunior™bgapackage
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
microstarjuniorisatrademarkoftexasinstruments.
spiisatrademarkofmotorola.
productiondatainformationiscurrentasofpublicationdate.
copyright©2002–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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