AB5325A蓝牙音箱标准原理图 

1234U1AGNDAC3C4104104105C1L1104DACLVDDDAC0R/220nH/470nHFM_ANTBLUE_LEDMUTEVDDIOVMCUVDDBTPWRKEYGNDC6123456789101112DACLVDDDACAGNDFM_ANTPE7/AUXR2/ADC9/IRPE6/AUXL2/ADC8/IRPE0/MUTE/IRVDDIOVBATDGNDVDDBTPWRKEYAB5325A SSOP24-150milAUX/PF0IR/ADC10/MICL/PF2IR/ADC0/SDCMD1/PA5IR/ADC1/AUXL0/SDCLK1/PA6ADC2/AUXR0/SDDAT1/PA7ADC5/USB_DP/PB3ADC6/USB_DM/PB4BT_OSCOBT_OSCIBT_RFGNDBT_ANTBT_RFGND242322212019181716151413AUXMICINSDCMDSDCLKSDDATUSBDPUSBDMOSCOOSCIBT_ANTL2L3NCC2NCY126MHZGNDAC5NC0RL4NC21BT-ANT1ANTENNA_PIFA说明:1.样机有电池的情况下,VBAT电源输入的电容可设置为NC。若为适配器长线给VBAT供电,请使用104电容。2.104可以改用224代替。105可改用225代替。3.晶振频偏可使用原厂提供的测试盒无线测试与校正。4.晶振规格:26M_9pF或7.5pF负载_+-10ppm。5.AB5325A兼容AB5305A封装。GNDBAB5325A SSOP24-150mil 硬开关蓝牙音箱V1.0PWRKEYR112KR247KR5150KR6820KS1POWERS2PREV/VOL-S3NEXT/VOL+S4P/PS5PHONEBVDDDACR46.8KC7GNDUSB1VDDIOVMCU12USBDM3USBDP4GNDupDate:芯片支持USB与SD接口升级R34.7RC8NCJ1SDCMDSDCLKSDDAT12345678910GNDSD2SD3SCMDVDDSCLKVSSSD0SD1CDSHEETTF3BLUE_LEDD1BLUEGND+M1104C9NC/102MICIN内部300R电阻上拉驱动+5VDMDPGND65GNDR72KC可实现5个按键检测。需要更多的按键,使用ADKEY来扩展。GNDAGNDGNDCPWRKEYLEDR8NCQ18550R9R10D31N5819C10105R122.2R2K10KD2REDMICGNDUSB/SDVMCUJACK1MINI-USBVBUSALGARGGGGG+5V123FM_ANT45VBATSW1VMCUMUTEAGNDC11225R11NCU2XA8002GND8765OUTL+OUTL-VMCUOUTL+OUTL-J2SPKAUXBT13.4V~4.2VR13NCD4COLORR14470R1234SDBYPIN+IN-R15VO2GNDVDDVO133KNCC1210512DDL5600R@100MHz6789电池电量主控内部检测DACLC13104R167.5KC14GNDAGNDGNDGNDAGNDGNDPOWER1PA342



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