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原理图(X-nucleo-cca02m1_schematic).pdf

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X-NUCLEO-CCA02M1 Schematic diagram Figure 1: X-NUCLEO-CCA02M1 circuit schematic (Part 1) Figure 2: X-NUCLEO-CCA02M1 circuit schematic (Part 2) OpenOpenOpenCloseCloseCloseCloseOpenOpenOpenOpenOpenOpenOpenOpenSPI1_MISOSPI1_CSSPI1_SCKSPI1_MOSIMIC_CLK_NUCLEOMIC_CLK_x2MIC_CLK_x2MIC_CLK_x2MIC_CLK_x2MIC_CLK_NUCLEOMIC_CLK_NUCLEOMIC_CLK_x23V3V_IN5VE5VOTG_FS_DM_NUCLEOOTG_FS_DP_NUCLEOMIC_PDM12MIC_PDM34MIC_PDM34MIC_CLKOSC_CLK_OUTMIC_PDM34MIC_LEDµ4_LEDSB16SB17SB21CN8123456SB15SB6SB23SB12SB20SB14CN7HEADER19x21357911131517192123252729313335372468101214161820222426283032343638R4100CN612345678SB7SB11SB10CN912345678CN512345678910SB13CN10HEADER19x21357911131517192123252729313335372468101214161820222426283032343638SB22SB8C615pFGSPG1205151100SGON: 5V Expansion -> Nucleo (streamand power from Expansion USB)OFF: 5V generated on Nucleo.V_USBE5V3V3V_USB3V3OSC_CLK_OUTOTG_FS_DM_NUCLEOOTG_FS_DP_NUCLEOU2NC8MHzEN1GND2OUT3VDD4C4NC100nFJ112USBUSBMini-BSH49Vbus1ID4D-2D+3GND5SH16SH27SH38SB1U1USBLC6-2SC6D11GND2D23VBUS5D34D46D2ESDA7P60-1U1M21C3NC15pFD1STPS160ASB20RR3NCC5100nFGSPG1205151035SG
Figure 3: X-NUCLEO-CCA02M1 circuit schematic (Part 3) Figure 4: X-NUCLEO-CCA02M1 circuit schematic (Part 4) On-Board (OB)Mic Source SelectorOpenMIC_PDM34_OBMIC_PDM34_EXTMIC_PDM34_OBMIC_PDMIC_PDM12_OBMIC_PUMIC_PDM34_OBMIC_PDM12_OBMIC_PDM12_OBMIC_PDM12_EXT3V33V3MIC_PDM12MIC_PDM34MIC_CLKMIC_CLKC2100nFM1MP34DT01-MDOUT4LR2GND5AVDD1CLK3GND5BGND5DGND5CM2MP34DT01-MDOUT4LR2GND5AVDD1CLK3GND5BGND5DGND5CSB9C1100nFJ3HEADER3123J2HEADER3123GSPG1205151400SG
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