AC6925B标准原理图 

54321晶振及负载电容需包地,且底部不能走线FM-ANTY124MHz/10PPM234FM-ANT-ICOSC24MOFB1NCC210PGNDFB3180nHDU1AC6925B-QSOP24OSC24MOSD-CLKSD-CMDSD-DATDMDPMICLINE-INDACLDACVDDVCOM3V3GNDA123456789101112PC5/SD1CLKABT_OSCOPC4/SD1CMDA/ADC4BT_OSCIPC3/SD1DATA/ADC10FMVSSUSBDM/ADC11FMIPUSBDPBT_RFPA0/MIC/PA4/AUX1R/ADC1BT_AVDDPA3/AUX1L/ADC0VBATDACLADC6/PB0DACVDDADC7/PB1VCOMSD0DATB/PB3DACVSSADC8/AUX0L/SD0CMDB/PB4VDDIOADC9/AUX0R/SD0CLKB/PB5242322212019181716151413OSC24MOOSC24MIFM-ANT-ICBT-ANT-ICBT_AVDDBAT+3V7AD-KEYLEDMUTEAB/DHOLDOSC24MIDOSC24MI1FM-ANT晶振两种封装,二选一C11NCC12NCOSC24MIGND1Y224MHz/10PPM3OSC24MOFMGND2GND4BT-ANT-ICR60RC3R12P7FNCBT-ANTGNDCCMCU:AC6925BGNDPCB_BT_ANTANT121PCB_BT_ANTANT221DC+5VMCU旁路电容,需尽量靠近IC脚VCOM3V3C4BBT-ANTGNDBT-ANTGNDQ1DACVDDBATT+LED-DCR2R3NCNC/9015NCBAT+3V7C5BT_AVDDC6C7BT-ANTBC8105/474105/225105/225105/474105/474充电指示电路,上下二选一,有充电IC都不需要LED-DCR4510RDC+5VGNDGNDAMICDACVDDMICR5C101046.8K12C13NCMK1MICTEST POINT测试点需放在同一层AD-KEYALED-DCLEDLED1REDBLUEGNDLEDLED2GNDAAD-KEYDMDPBAT+3V7GNDLEDLED-DCLED指示灯上下二选一ADMDPBAT+3V7GND231LED3LED3PGNDShenzhen Lenze Technology Co,.LTDTitleSizeA4Date:2MCU-AC6925BRevV1.03Sheet1Document Number<Doc>AC6925B APPLICATION CIRCUIT.dsnTuesday, April 10, 20181of54354321AMPBAT+3V7R38R39MUTE+10KNC/10K105R420RNCR47C23NC7.5KR48NCTP1GNDGNDAGNDC1710uFTC1BAT+3V7NC/100uF3V3R17J1SPEAK8765SP+SP-PJ2LINE_IN4321GNDAR43R41R40220K10KC1910KAD-KEY224LINE-IN22KR15R18R21R22R24R25R26R28R300R3KK1PP/MODEK2PP/MODENCPREV/V-NEXT/V+V-V+PPMODETELPWRDDGNDAAB/DGNDADACLR45C22C20NCNCR44U4800212SDVO23BPGND4+INVDD-INVO1104C21R4933KGNDAD-KEYR32PWRK36K2PREV/V-K49K1NEXT/V+K515KV-K624KV+K733KPPK851KMODEK9100KTEL120KK10GNDALINEIN软开机硬开机SW14PWRNC123R9BAT+3V7GND1KSW5TP1靠近功放的输入端,并靠近电池负极CKEYBAT+3V7D4BAT54CGNDTF CARD3V3SD-DET1312R11R124.7R3.3K3V3-SDSD-CLKCBATT+Q22301R7BATT+12R1910K123456789HOLD3V3SD-CMD3V3-SDSD-CLKSD-DATSD-DETR16R810KNCQ32N3904K1NC/RSTR1010KGNDBATT+BAT23.7VGNDNC3NC2NC1NCBDAT2CD/DATA3CMDVDDCLKVSS2DAT0DAT1Card DetMicro SD (T-Flash)CON1DC+5V5819D2R13BATT+2.2RB充电电路上下二选一GND1110GNDDC+5VBAT+3V7R141R5V-HOST7676USB HOST5V-HOST5V-HOST1234DMDPC91056NC1VDDDMDPGNDNCUSB3USB_HOST-5PUSB1Micro-USB12345USBDC+5VDC+5V4USB2Micro-USB123455DC+5VC28105LIN-LFM-ANTLIN-RFM-ANTFB2600R-100MHZR533.3KU64054VDDPROGLED7R55VBATVSSSTATBATT+321GNDR542.2KS2S1USB HOST电源上下二选一5V-HOSTU31NC5V2C16NC3NC/HX4004A6C1C155GND5NC43CS2S1RED510RDC+5VC14AVBUSD-D+IDGNDS4S3DMDPVBUSD-D+IDGNDS4S3GNDGNDA5Shenzhen Lenze Technology Co,.LTDTitle<Title>8989GNDGNDBAT+3V754GNDGNDPeripheralsRevV1.03Sheet1USB封装二选一3GNDSizeA4Date:2Document Number<Doc>AC6925B APPLICATION CIRCUIT.dsnWednesday, April 11, 20182of</p></div> <br><script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-8166311410841157" data-ad-slot="7184130315" data-ad-format="auto"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); 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