AX2227-CW6639蓝牙原理图

1122334455667788DDCCBBAASPI_CSSPI_CLKSPI_DATLDOINDACLDACRVDDDACMICINVDDHPVBATGNDVDDIOLDOINGNDGNDAGNDC1610uFC20105C1810uFC17105C11105C8NCC10NCC21105VBATR552R2/0805ADKEYBAT1AGNDR310RGNDP3727VDDHP7P0115P0214P0016VDDIRT32IRTOSCI33IRTOSCO34IRTWKO35P1724P1623P1536P1417P1328P1229P1130P1031P3440P3318P3237P3138P3039P271P2641P2542P35/UDSW48P2443P2344P2245P212P203USBDM46USBDP47P36/VPG334VDDLDO5VDDIO6VDDDAC8DACR9VCM10DACL11VSSDAC12P07/VPP22P0621P0520P0419P03/VB13VDDCORE26VSS25U1AX2227_LQFP48R220KVCMVDDIRTIRTWKAUXRAUXLDVDDMUTER591KD4RED5V1DM2DP3ID4GND56666USB2MINIUSB+5VGNDCS1SO2WP3GND4SI5SCK6HOLD7VCC8U8SPIFLASHGNDR10240RC28105SPI_CLKGNDMICINAGNDR253.3KR243.3KC6110uFC63104+M1AGNDVDDDACAGND2431J3LINE-OUTC6547uF/6.3VC6647uF/6.3VDACLDACRR482KR462KR474.7KSD1BYP2IN+3IN-4VO15VDD6GND7VO28U9AX601封装：SOP-8C704.7uFOUTR1-OUTR1+C6910412J4OUTC71105MUTEGNDGNDDACLDACRR37100KC68220uF/10VOUTR1+OUTR1-AGND2431J1LINE-INC25105C64105R54.7KR74.7KR4NC/4.7KR6NC/4.7KAGNDAGNDAUXRAUXLR4R6用于解决LINE-IN线悬空噪声V_PAV_PAD31N5819Project:Drawnby:Checkedby:Approvedby:SCH.NO.:PCB.NO.:Date:Version:Sheet:1/1Size:BUILDWININTERNATIONAL(ZHUHAI)LIMITEDA3V1.72014-06-18AX2227CW6639MBTBoomboxV1.7BT_RSTY232.768KSPI_CSAX2227MCUMICPAPOWERSPI_FLASHEarPhone/LineinXOSCOXOSCIBT_RXBT_TXVDD33USBDMUSBDPVDD33注意除ADKEY以外，3.3V电源均使用VDD33(PIN4)。MINIUSB可用于充电SPI_DATSPI_DATC72NCQ19015R211KAX2227低功耗模式：待机功耗约为90uAstandbyPower：1uAVDD33为软件可控开关3.3V电源。VBATLDOINV_PAS16P/P/POWERIRTWKR43100KC26105GNDVDDIOADKEY使用VDDIO(PIN6）电源。电源说明：使用低功耗模式，需要焊接R2与C26。软硬开关机模式，不使用RTC功能，硬开关模式软开关模式低功耗模式VDD33R224R7C38105GNDSD_CLKMicroSDXPXOVINGNDTXDRXDWAKERSTTP5TP4TP3TP2TP1GNDU5CW6639M_ModuleC33NC/10uFGNDR124R7/NCGNDBT_RXBT_TXBT_RSTEN3GND2VIN1BP4VOUT5U4RT9193-3.3V/NCC31105/NCC352.2uF/NCC3222nF/NCGNDGNDMD_RFC23NCL10RC15NCC2222PFE1BT_VDDBT_VDDRF_LINEC30105BT3.3VBT3.3VY126MHZGND0BL_VI1VPP2VBATU3UVDD4UVSS5DP6DM7TXD8RXD9CTS10RTS11BCLK12FSYN13DT14DR15CDCLK16RSTB17IOVDD18IOVSS19VDD20VSS21GPIO022GPIO123GPIO224GPIO325GPIO426GPIO527GPIO928GPIO1029TEST_EN30VDDQ31VCC_RF32GND_ANT133RXTX34GND_ANT135VCC_VCO36VTUNE37PLL_OUT38VCC_IF_XO39XO_P40XO_N41CNR42RVDD43REG_IN44VDD45VSS46XTAL047XTAL148U3CW6639MQFN-48L-0.4C29NC/105BT_RXBT_TXC7105C610PFC510PFC4104C32.2uFC2105C12.2uFC19105C27105GNDGNDGNDGNDGNDGNDGNDC14NC/10uFR34R7/NCEN3GND2VIN1BP4VOUT5U2RT9193-3.3V/NCC9105/NCC1222nF/NCGNDGNDBT3.3VC132.2uF/NCGNDLDOINBT_RSTCW6639M通话与音乐功能芯片模组LDOINBT_WAKEUPBT_WAKEUP蓝牙模块与芯片微带天线天线内置BT3.3V1TP1TP1TP2TP1TP3TP1TP4TP1TP5TP1TP6TPTP1TP2TP3TP4TP5TP1TP2TP3TP4TP5BT_RST1TP7TPBT_TX1TP8TPBT_RX1TP9TP1TP10TPLDOINGND预留测试点R50100K/NCGNDVDD33R51100K/NCGNDVDD33VDD33关闭时，LDOdisable。standby功耗0.01uA。VDD33关闭时，LDOdisable。standby功耗0.01uA。COM3/LCD_CSCOM2COM1COM0LCD_BKL/LED1SD_DAT/IIC_DATSD_CMD/IIC_CLKSD_CLKIRDAFM_VOUTRFM_VOUTLSEG1/DC_DETSEG4/LCD_CLKSEG3/LCD_DATBT_WAKEUPSEG6/LCD_A0SEG5COM4/SEG7/LCD_RES/LED2SEG2R582KC37NC+5V1DM2DP3GND456USB1JACK-USBUSBDMUSBDPGNDGNDGNDVUSBGNDIRDA123DATGNDVCCIR1IRVDD33L6600R@100MHzL7600R@100MHzR141KR291KR5720KR4530KSEG1/DC_DETSEG0/KEYPWRANT2GPIO11GND2GND3FMIN4GND5GND6SCLK7SDA8RCLK9VDD10GND11LOUT12ROUT13GND14GPIO315GPIO216U6QN8075/RDA5807/BK1080FM_VDDL42.5K@100MHzC5110uFC50103C39102C52101L2330nHC40105软件支持QN8075/RDA5807/BK1080硬件天线电路需要修改C4918pF/24pFL3100nHANT1QN8075RDA5807/BK1080RDA5807100nH24pFBK1080100nH18pFXOSCOFM_VOUTRFM_VOUTLC41105FM_CLKFM_DATR181KR171K拉杆天线拉杆天线VDD33SD_DAT/IIC_DATSD_CMD/IIC_CLKUSB_HostC8410uFGNDGNDC8210uFVIN5GND2EN3C-4C+6VOUT1U14AX651C77225R52NCC83104R49100KLDOINVDD33GNDGNDSD_DAT/IIC_DATLED数码管A1B2C3D4E5F6G71829310411512USBSDMP3MHzLED14个八LED(共阳)SEG6/LCD_A0SEG5SEG4/LCD_CLKSEG3/LCD_DATSEG1/DC_DETSEG0/KEYPWRSEG2COM3/LCD_CSCOM2COM1COM0COM4/SEG7/LCD_RES/LED2GNDD1GREENR8330R绿灯为连接状态灯。LCD_BKL/LED1ADKEYFMSD21SD32SCMD3VDD4SCLK5VSS6SD07SD18CD9SHEET0J2TFGNDSD_CMD/IIC_CLKR321.5KVBATLDOINV_PAIRTWKQ3PJM3401Q49014R38470KR44100KR41100KR53100KGND+5VQ2PJM3401R39100KS17P/P/POWERVBATR4236K软关机模式：R27100RSW1SWSPDT硬开关模式：待机功耗约为0uALDOINV_PAVBATGNDAGNDAGNDAGND磁珠用于隔离SPIFLASH对FM的干扰充电指示灯GNDR130RR15100KR16150KR1300KR11100KADKEYS1HSFS2PREVS3NEXTS4VOL-VDDIOR9510KS5VOL+R54NC/3.3KR60NC/3.3KAGNDR54R60用于解决上电啪啪声HSF按键必须使用0R电阻用于升级调试程序DemoBoardLEDIRSEG0/KEYPWRUSB可用于升级程序SD_CMD/IIC_CLK注意事项：1.AUX/EarPhone插入检测引脚需要避免与LED数码管屏或段码屏复用。插入/拔出座子瞬间，容易产生滋滋的噪声。版本更新说明：1.版本由V1.6更新到V1.7；2.增加蓝牙外围电容，改善蓝牙距离；实际样机请不要把USB数据线连接到MINI座会导致插入MINIUSB线时无法读取U盘MIC电源为VDDDACSPI_Flash方案FM抗干扰注意事项：1.FM不能与SPI_Flash共用数字地，FM需要放置在模拟地，SPI_Flash放置在数字地。隔离地线传导干扰。2.SPI_Flash部分，可以分别在电源与地线串联磁珠。隔离SPI通信时，电源上产生的干扰。3.FM部分，可以在电源上串联磁珠，隔离电源干扰。4.SPI_Flash靠近主控放置，数据线尽量短。5.FM放置位置应该尽量远离SPI_Flash与MCU。6.FM天线尽量不要靠近SPI_Flash与MCU。不需要RTC功能，功耗约为2uA。(不焊接RTC电路）需要RTC功能，功耗约为20uA。(焊接RTC电路）需要RTC功能，功耗约为20uA。(焊接RTC电路）不需要RTC功能，功耗约为0uA。(不焊接RTC电路）可不焊接R2与C26。P20/P21/P22/P23/P24/P25/P26/P27/P30/P31/P32提供上下拉500R的选项，可作为LED数码管的SEG口使用。P32/P10/P11/P12/P13提供了24mA驱动能力，可作为LED数码管的COM口使用。除P02/P03，所有IO口标配10K上下拉选项，均可作为段码屏的COM与SEG。7pin数码管直推1/0驱动，不需要考虑上下拉部分。除P02/P03均可以作为推屏口。1.LED数码管：2.7PINLED数码管：3.段码屏：显示屏GPIO选择注意事项：4.串行屏：LCD_DAT需要选择P25，LCD_CLK需要选择P26。其他引脚A0/RES/CS，可任意选择GPIO。XP/XOPCB不做焊盘避免晶振产生频偏晶振匹配电容C5/C6需要根据晶振参数微调A1B2C3D4E5F6G7MHZMP3AUXUSBFMSDLED2SEG_LED8888_7PP23(PIN44)P24