ac2092音响主控芯片

音频解码芯片规格书——AC2092芯片版本：V1.0日期：2011.6.17目录一、芯片性能简介..............................................1二、引脚定义..................................................22.1引脚分配..............................................................................................................22.2引脚描述..............................................................................................................3三、芯片电气特性..............................................63.1LDO电流、电压特性..........................................................................................63.2I/O输入、输出高低逻辑特性.............................................................................63.3I/O输出能力、上下拉电阻特性.........................................................................73.4DAC特性.............................................................................................................73.5ADC特性.............................................................................................................73.6AUX特性...........................................................................................................8四、附录.....................................................94.1AC2092_LQFP48封装图...................................................................................91一、芯片性能简介AC2092是一款高度集成的音频播放芯片。它内置了高性能的DSP用于音频处理，支持MP3、ADPCM、WAV等音频文件播放，内置了24BitDAC及耳机功放，可以方便的制作桌面音响或便携类音响。它支持多种音源播放，包括：SD卡、U盘、Line-in以及接PC播放USBAudio。内置10BitADC可用于电量检测以及ADC按键。利用丰富的IO资源可以方便的支持各种显示屏，包括LED屏、LCD屏、点阵屏等。AC2092可以实现各种高性能、低成本的音频播放系统。2二、引脚定义2.1引脚分配图1AC2092_48PIN引脚分配图32.2引脚描述表1AC2092_48PIN引脚描述PinNO.NameI/OTypeDrive(mA)FunctionOtherFunction1VDDIOP/IOPower3.3V2LDO5VP/LDOPower5V3VSSIOP/IOGround4P23I/T2CAP:Timer2CapturePinWKUP3:PortInterrupt/Wakeup5P24I/O8GPIOUARTTX1:UARTDataOut(B)AUXL0:AnalogMUXleftchannelinput046P25I/O8GPIOUARTRX1:UARTDataIn(B)AUXR0:AnalogMUXrightchannelinput07P26I/O8GPIOIICK1:IICClock(B)AUXL1:AnalogMUXleftchannelinput18P27I/O8GPIOIICDA1:IICData(B)AUXR1:AnalogMUXrightchannelinput19P33I/O24GPIOEMI_WR_:EMIPortWriteenableUARTRX2:UARTDataIn(C)IICDA2:IICData(C)10P32I/O24GPIOLVD:LowvoltagedetectinputSPIDIB:SPIDataIn(B)UARTTX2:UARTDataOut(C)IICK2:IICClock(C)11P31I/O24GPIOSPIDOB:SPIDataOut(B)12P30I/O24GPIOSPICLKB:SPIClock(B)13VPPP/OTPProgramPowerAdditionalInputOnlyPin14P17I/O8GPIOEMID7:EMIData7SPIDOA:SPIDataOut(A)15P16I/O8GPIOEMID6:EMIData6SPICLKA:SPIClock(A)16P15I/O8GPIOEMID5:EMIData5SPIDIA:SPIDataIn(A)17P14I/O8GPIOEMID4:EMIData418P13I/O8GPIOEMID3:EMIData3T2CKIN:Timer2ClockIn19P12I/O8GPIOEMID2:EMIData220P11I/O8GPIOEMID1:EMIData121P10I/O8GPIOEMID0:EMIData022P01I/O8GPIOHighFrequencyOscillatorOutISPDataIn23P00I/O8GPIOHighFrequencyOscillatorInISPClockIn24VDDIOP/IOPower3.3V25VSSIOP/IOGround26P07I/O8GPIOADC7:ADCChannel7InputUARTRX0:UARTDataIn(A)WKUP2:PortInterrupt/Wakeup527P06I/O8GPIOADC6:ADCChannel6InputUARTTX0:UARTDataOut(A)28P05I/O8GPIOADC5:ADCChannel5InputT1CKIN:Timer1ClockInWKUP1:PortInterrupt/WakeupT2PWM:Timer2PWMOutputCLKOUT:InternalClockOutput29DVDDP/CorePower1.8V30P04I/O8GPIOADC4:ADCChannel4InputT1CAP:Timer1CapturePin31P03I/O8GPIOADC3:ADCChannel3InputT0CKIN:Timer0ClockInT1PWM:Timer1PWMOutput32P02I/O8GPIOADC2:ADCChannel2InputT0CAP:Timer0CapturePinWKUP0:PortInterrupt/WakeupISPDataOut33P34I/O24GPIOT3PWM:Timer3PWMOutputOSC_In:ExternalOscillatorClockIn34P20I/O8GPIOSDCLK:SDClock35P21I/O8GPIOSDCMD:SDCommand36P22I/O8GPIOSDDAT:SDData37USBDMI/O/USBNegativeDataUARTRX3:UARTDataIn(D)IICDA3:IICData(D)38USBDPI/O/USBPositiveDataUARTTX3:UARTDataOut(D)IICK3:IICClock(D)39WKUPO/RTCWakeUpOutput40OSC32KOO/RTC32Koscillatoroutput41OSC32KII/RTC32Koscillatorinput42RTCVDDP/RTCPower1.8V43DACVDDP/DACPower3.1V44VCOMP/DACReference45DACVSSP/DACGround46DACLO/DACLeftChannel47DACRO/DACRightChannel48HPVDDP/HeadphonePower3.3V6三、芯片电气特性3.1LDO电流、电压特性符号参数最小典型最大单位测试条件LDO5VVoltageInput3.44.65.5V_VDDIOIOvoltage_3.3_VLDO5V=5V,100mAloadingDVDDCorevoltage_1.8_VLDO5V=5V,50mAloadingDACVDDAudioDACvoltage_3.1_VLDO5V=5V,20mAloadingHPVDDHeadphoneamplifiervoltage3.3VLDO5V=5V,80mAloadingRTCVDDRTCvoltage1.21.62V_IL1.8__60mALDO5V=5VIL3.3__150mALDO5V=5VIDACLoadingcurrent__80mALDO5V=5V3.2I/O输入、输出高低逻辑特性IO输入特性符号参数最小典型最大单位测试条件VILLow-LevelInputVoltaget-0.3_0.3*VDDIOVVDDIO=3.3VVIHHigh-LevelInputVoltage0.7*VDDIO_VDDIO+0.3VVDDIO=3.3V8mAIO输出特性VOLLow-LevelOutputVoltaget__0.33VVDDIO=3.3VIsink=8mAVOHHigh-LevelOutputVoltaget2.7__VVDDIO=3.3VIsource=8mA24mAIO输出特性VOLLow-LevelOutputVoltaget__0.33VVDDIO=3.3VIsink=24mA7VOHHigh-LevelOutputVoltaget2.7__VVDDIO=3.3VIsource=24mA3.3I/O输出能力、上下拉电阻特性Port口输出能力上拉电阻下拉电阻备注P00--P078mA10K10K_P10--P178mA10K500R1K支持两种下拉P20--P278mA10K_不支持下拉P30--P358/24mA10K10K输出能力可选3.4DAC特性符号参数文件格式最小典型最大单位测试条件VrmsMaximumoutputlevelMP31V(+3db)1KHzSR=44.1K，CR=192KbpsSNRSignaltoNoiseRatioMP390dB1KHz，SR=44.1K，静音文件，CR=192KbpsTHD+NTotalHarmoniDistortion+NoiseMP30.015%(-1.5db)1KHz，SR=44.1K，CR=192KbpsXTALKChannelSeparationMP3FRespFrequencyresponseMP33.5ADC特性符号参数最小典型最大单位测试条件INL2LSBDNL2LSBFSamplingSamplingRate83kBITResolutionBit10Bit83.6AUX特性符号参数最小典型最大单位测试条件VinInputLevel0-3.3vFreFrequency0-20kHzVoutOuputLevel0-3.3vPhaseInputOutputPhaseDif