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1、瑞星微方案维修培训资料RK26XX芯片应用介绍LQFP128(14x14)PINLQFP100(14x14)PIN内部框图芯片参数VVDDA+0.3-0.3InputvoltageonanyanalogpinrelativetogroundVVCC+0.3-0.3I/0pinrelativetogroundInputvoltageonanydigitalV3.6-0.3InputvoltageonUSBDM,DPpins(USBIO)V3.6-0.3VCCV2.0-0.3VDDPLL°C120-40Storagetemperature°C80-10Ambi
2、entoperatingtemperatureUNITSMAXMINPARAMETERV2.01.81.6USBsupplyvoltage–VDDA(Generateinternal)V3.32.92.6USBsupplyvoltage–VCCAV3.32.92.610bitADCsupplyvoltage–VCCAV2.01.81.6AnalogHP-AMPsupplyvoltage–VDDAOV2.01.81.6Analogsupplyvoltage–VDDAV3.32.92.6DigitalI/Osupplyvoltage–VCCV2.01.81.6
3、Digitalcoresupplyvoltage--VDDUNITSMAXTYPMINPARAMETERoperatingconditions:VCC=3.0V±0.3V,VDD=1.8V±0.2V,Tj=-40to+120°C.mA5035IVDDOperatingsupplycurrent,fclk=12MHz,Ta=25OC,VCC=3.0V,VDD=1.8VmA8GPIOdrivemA±5ILooutputleakagecurrentmA±10ILiInputleakagecurrentV0.4VCC-0.3VILLowLevelInputVolt
4、age3VbuffersVVCC+0.60.7VCCVIHHighLevelInputVoltage3VbuffersV0.2xVCCVOLLowLevelOutputVoltage(2mA)V0.8xVCVOHHighLevelOutputVoltage(2mA)mAIDDSQuiescentSupplyCurrent,VI=VDDorVSSunitmaxtypminSymbolParameterkOhm504030InputresistancedB+1-1GIL,GIR@1kHzGainaccuracydB1.5GIL,GIRGainstepdB22.
5、50GIL,GIR4-bitprogrammablerange,@1kHzGainrangedB50100mVpp1kHzsinewaveisappliedtoVDDA,inputdatais0andgainGIL,GIR=0dBPSRRdB8580A-weighted,1kHzsinewave@FullScale–60dBandgain=0dB(note2)DynamicrangedB-80-851kHzsinewave@FullScale–1dBandgainGIL,GIR=0dBTHDdB8580A-weighted,1kHzsinewave@Ful
6、lScaleandgainGIL,GIR=0dBSNRVpp1.721.531.34FullScale,GainGIL,GIR=0dB(note1)InputlevelUnitMax.TypMin.TestconditionsParameter Measurementconditions:T=25°C,VDDA=VDDAO=VREFP=1.8V,inputsinewavewithafrequencyof1kHz,Fmclk=12MHz,Fs=48kHz,measurementbandwidth20Hz–20kHz,unlessotherwisespecif
7、ied.+4-4GainGIL,GIR=0or22.5dB,withHPF+2000-2000GainGIL,GIR=22.5dB,withoutHPFLSB±200GainGIL,GIR=0dB,withoutHighPassFilterOffset(note3)uF1CbylineInputbypasscapacitorpF25Includes10pFforESD,bondingandpackagepinscapacitancesInputcapacitanceRK26XX标准电路图整机方框图RK2606主控图RK2602主控图USB，电源及按键耳机及
8、功放话筒线路输入收音显示屏及升压电路内存及卡SDRAM(TFTLC
