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TDA1521功放电路原理图C5222C9102C833320pFC13C20101C151uFC181uFC12222100KR2R310KR510K27KR7R910KGND10KR10R131MR151KR2015KR173.3KR211K231A84U2ANE5532567B84U2BNE5532C6222C10102C733320pFC14C19101C161uFC211uFC171uFC11222R610KR410KR827KR1110KGND10KR12R141MR161KR1915KR183.3KR221K231A84U1ANE5532567B84U1BNE5532C221uF34P1BAudio-LC31uFC21000pFLR-16VGNDR242W8.2R232W8.2C2922nFC3022nFGNDLS1Speaker-LLS2Speaker-RC241uFC231uF546VR1B100K+16VGNDD11N4007D41N4007D21N4007D31N4007D51N4007D61N4007C252200uFC262200uFC280.01C270.01VinVoutGNDU5MC7812C321000uFC311000uFC330.01C340.01VinVoutGNDU4MC7912GND321P3Header3HGND+16V-16V-12V+12V12P1AAudio-RC11uF213VR1A100K1000pFC4R1100KR213VR2A100K546VR2B100K546VR3B100K213VR3A100K213VR4A100KGND+12V-12V+12V-12V1211223344556677889968068020K20K20K20KU3TDA1521L