75DVD-2910/955SM8701BM (IC113)FUNCTIONAL BLOCK DIAGRAMPower SupplyRSTSCKAdvancedSegmentDACModulatorVOUTL+VOUTL−BiasandVrefVCCFVDDAGNDRVCCRAGNDLAGNDFD/S and Filter8OversamplingDigitalFilterandFunctionControlAudioData InputI/FLRCKBCKDATAMDOMDIMCMSAGNDCVCCCDGNDCurrentSegmentDACandI/V BufferVCOMFunctionControlI/FZeroDetectZEROLZERORSystemClockManagerMSELMUTEVCCLVOUTR−VOUTR+D/S and FilterCurrentSegmentDACandI/V Buffer12345678910201918171615MLEN/R2P/SVDDGNDXTOXTIGNDPVDDPVDD3MOMCK/R1MDT/R0RSTNSO3VDDOGNDOSO2SO4SO1MON14131211Control signal input.1 MLEN/R2 Ip 1 In serial mode: latch enable signalIn parallel mode: sampling rate select signal2 P/S Ip 1 Mode select signal.LOW: serial mode, HIGH: parallel mode3 VDD 5V supply (Digital block)4 GND Ground (Digital block)5 XTO O Reference signal crystal oscillator element connection6 XTI I Reference signal crystal oscillator element connectionor external clock input7 GNDP Ground (PLL block)8 VDDP 5V supply (PLL block)9 VDD 3 3.3V supply (output buffer)10 MO O 27 MHz fixed-frequency output11 MON O 27 MHz fixed-frequency output (inverted)12 SO1 O 33.8688 MHz fixed-frequency output13 SO4 O 768fs output14 SO2 O 256fs output15 GNDO Ground (output buffer)16 VDDO 3.3V supply (output buffer)17 SO3 O 384fs output18 RSTN Ip 2 LOW-level reset inputControl signal input.19 MDT/R0 Ip 1 In serial mode: control data input signalIn parallel mode: sampling frequency select signalControl signal input.20 MCK/R1 Ip 1 In serial mode: clock signalIn parallel mode: sampling frequency select signalPin Name FunctionPin No. I/OSM8701BM Terminal FunctionNote: 1. Schmitt trigger input with pull-down resistor2. Schmitt trigger input with pull-up resistor