RK26XX芯片应用介绍

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1、RK26XX芯片应用介绍V0.0瑞芯微电子有限公司2006－06－281一：Rock26XXDATASHEET21:Features128/100pinsLQFPpackageTypicalpowervoltage3.3V(IO),1.8V(Core)Useone24MHzcrystaloscillator32GPIO(8bitsP0,P1,P3,16bitsP2)10-bitlowresolutionADCwith4-channelAnalogInputBuildinStereo24-bitDel

2、ta-SigmaDACwithon-chipheadphoneamplifierBuildinStereo16-bitSigma-DeltaADC(Line-in/FMInput/Microphonewithanalogmixer)40levelsdigitalvolumecontrolSupportexternalCODECthroughI2DSPinterfaceSupportI2CinterfaceSupportUSB2.0highspeedandfullspeedIntegrated3Cha

3、nnelDMA3EmbeddedDSPCore:4KwordsBootSyncROM128KwordsSyncSRAM2KwordsRegisterSpaceforPeripheralsUpgradablefirmwarethroughUSB/Flashinterface4Memoryinterface:Externalupto2(cs)x64M-2GbytesNandtypeFlashaccessedbyDMASupportboth8-bit(X8device)and16-bit(X16devic

4、e)IObusSupportSDRAMSupportSD/MMCSupportExternalNOR-Flashbootup5VideoDriver:SupportTFTLCD/OLEDInterfacePulseWidthModulatorsforELbacklightsSupportwatchdogtimerDSP-basedSoftware:MPEG1/2/2.5AudioLayer1,2,3decoding,Layer3encodingWMA9decodingG.729basedvoicer

5、ecordingandplaybackequalizerMPEG-4@QVGAdecoding6CODECPERFORMANCESHeadphonedriveroutput2x9mW@32Ohm(TYP);SNR:90dB(DACTYP)LowPowerConsumption,<110mWattypicalMP3decodersolution(@24MHz)SNR:85dBA-WeightedforADCpathTHD:-85dB(<0.0071%)forADCpathTHD:0.06%@18mW/

6、16OhmforDACpathTHD:-85dB@FS-1dB/>1kOhmforDACpathPSRR:50dB@1kHz72:PinDescriptionLQFP128(14x14)PIN89LQFP100(14x14)PIN1011Pin&PadDescriptions:12128PIN100PINPadNamesPADDirectionPinDescription11VDDAPAnalog1.8Vpoweroutput,Connectoneexternal10uFCAP22RREFIRe

7、ferenceResistorinput33AGNDPAnalogGND44DMAI/OUSBdataminus55DPAI/OUSBdataplus66VCCAPAnalog3.3Vpowerinput77D0I/OPullupFlash/LCD/SDRAMdatabusbit088D1I/OPullupFlash/LCD/SDRAMdatabusbit199D2I/OPullupFlash/LCD/SDRAMdatabusbit21010D3I/OPullupFlash/LCD/SDRAMdat

8、abusbit31111D4I/OPullupFlash/LCD/SDRAMdatabusbit41212D5I/OPullupFlash/LCD/SDRAMdatabusbit51313D6I/OPullupFlash/LCD/SDRAMdatabusbit61414D7I/OPullupFlash/LCD/SDRAMdatabusbit7131515RD/BYI,PullupFlashready/busysignal1616FRENOFlashreadenable