2 NC 10K NC IOA7 R16 330 R-0805 VSS_REG V18 IOA0 IOA1 IOA2 IOA3 IOA15 IOA4 IOA5 IOA6 VSS-IO IOA7 AD_key IOC0 VCC33 DAC_L VDACREF DAC_R C6 IOA14 IOA8 IOA9 IOA10 IOA11 IOA12 IOA13 IOA14 FM_Audio_L FM_Audio_R LINE_Audio_L LINE_Audio_R AGND R25 3.3k R29 5.1k R31 GND C7 0.1U C8 10U C12 10U C11 0.1U C13 10U X12MI Y1 VCC18 C10 0.1U AGND CR1 0.1U X32I VCC33 C9 47nF 12M 32768 C14 0.1U C15 22P C16 22P R43 7.5K C16A1 3.3nF 注：外接电位器时功放输入端选RR(LL)端，不使用外接电位器时功放输入端接R(L)端 R 5 4 3 2 1 RA1 240R RA2 240R C17 NETC40_2 10uF C18 NETC41_2 SP1 ROUT DAC_R 10uF DAC_L IOC0 RR LL HEADER 4_7 AGND 外接电位器 R58 R(RR) 0R RL1 47K CL1 105 CL2 224 RL2 4.7K RL3 47K CL4 105 3 2 1 S13 R41 22k S15 30k S17 R46 36k S19 R48 47k S21 R50 62k S23 R52 91k S25 R55 130k S27 240k VCC33 UL1 1 2 3 4 Shutd OUTBypass GND -IN VCC +IN OUT+ 8 7 6 5 S29 INT2 SDCD0 SDCCLK SDVCC SDCCMD R61 CL3 GND R63 next/+ 0.6V prev/- 0.8V power 1.0V mute 1.2V mode 1.4V clock 1.6V alarm 1.8V U/SD 2.0V REPEAT 2.2V EQ 2.4V F 2.6V F+ 2.8V F- 3.0V R26 3.3k R30 5.1k R32 NC R35 R38 S6 S8 S10 13.6k S12 R40 18k S14 R42 22k S16 R45 30k S18 R47 36k S20 R49 47k S22 R51 62k S24 R53 91k S26 130k R60 PLAY/MODE S4 10k R56 R63 IOA7 INT2 10 8 7 6 5 4 2 1 9 C4 0.68U 8 7 6 5 I2CSCL I2CSDA C19 10uF C20 10uF R64 200K LINE_Audio_L R65 200K LINE_Audio_R AGND L(LL) CL5 224 RL4 4.7K 1 2 3 4 Shutd OUTBypass GND -IN VCC +IN OUT+ 8 7 6 5 R9 10K SDCCLK SDVCC SDCCMD D S28 240k VCC33 IOA15 IOA3 IOA2 IOA1 IOA0 IOA4 IOA5 IOA6 IOA7 IOA8 IOA9 IOA10 IOA11 S30 0.2V play 0.4V prev/- 0.6V next/+ 0.8V PREV 1.0V NEXT 1.2V VOL- 1.4V VOL+ 1.6V POWER 1.8V MODE 2.0V EQ 2.2V REPEAT 2.4V MUTE 2.6V U/SD 2.8V F- 3.0V LCD5x8 LCD5x8_COM4 LCD5x8_COM3 LCD5x8_COM2 LCD5x8_COM1 LCD5x8_COM0 LCD5x8_SEG0 LCD5x8_SEG1 LCD5x8_SEG2 LCD5x8_SEG3 LCD5x8_SEG4 LCD5x8_SEG5 LCD5x8_SEG6 LCD5x8_SEG7 J1 1 2 3 4 5 6 7 8 9 10 11 12 13 CON14 RLC1 VCC33 DLC1 47-220 LED 背光 IOA13 RLC2 47K QLC1 2N3904 IOA13 IOA13上电低电平一秒后高电平 F+ AD_key R62 IOC0 24K NC AD_key1及时钟闹钟开 10K AD_key2及时钟闹钟关 IOCO可做MUTE IO IOA10 R54 10K/NC IOC0 R57 10K/NC 5V HOST 104 FM FMVCC 4 CL6 R69 CL6017S SCLK IOA12 SDA FM_OSC 0 R71 10K C23 FM_ROUT C24 105 105 CF1 FM_LOUT CF2 GND VCC33 LF2 R73 200k FM_Audio_R R74 200k FMVCC FGND CF8 FM_Audio_L 33R DP 2 R67 33R DN 220NF CF10 101 R54 NC 10K R57 NC 10K 5V BK1080IC原理参考 FGND UF2 56NH R66 无卡无U时到FM 无卡无U时到AUX FM---ON FM---OFF AR1015收音ＩＣ原理参考 223 223 CF4 FGND 106 X32O 101 FM_LOUT ANT R70 FM_ROUT GND 3 1 注：不使用MUTE功能时功放1脚可直接接地 VCC33 I2CSDA C22 47K CL6017G收音原理图 10R C21 105 FGND RL5 5 AUX--ON AUX--OFF NC 10K R68 GND J4 USB_4P_AF USB-A-SMD MEC1 10K/NC 1 2 3 4 5 6 7 8 RLOUT LOUT VDD VCO-LP VCO-LN GND APLL RFIN GND VDD SCLK SDIO OSC GND DPLL GND 16 15 14 13 12 11 10 9 CF5 105 FMVCC SCLK SDA FM_OSC FGND CF3 ANT 101 FGND LF1 100NH UF3 UF1 FGND CF6 18PF SCLK SDA 1 2 3 4 5 6 7 8 GPIO1 GND GND FMIN GND GND SCLK SDA GPIO2 GPIO3 GND ROUT LOUT GND VDD RCLK 16 15 14 13 12 11 10 9 FGND FM_ROUT FM_LOUT FGND FMVCC FM_OSC CF8 RF1 0R/nc 106 SDA FMVCC FM_LOUT FM_ROUT FGND 1 2 3 4 5 SDA VDD LOUT ROUT GND SCLK XTAL RF GND NC 10 9 8 7 6 SCLK FGND AR1015(MSOP-10) CF7 106 FGND CF9 470nf FGND 注：尽量参考AR1015设计 4 3 2 CF9 39P X32KO CF10 102 ANT A ANT 5 C B CECL2009 R68 VCC33 R6 10K 24C02 SDCD0 S2 7.5k 24K SP2 LOUT WP DAT1 DAT0 VSS CLK VDD CMD DAT3 DAT2 IC2 U4 SDCON 1.5k AD_key 104 5V UL2 CON3 A 18k play 0.4V MEC2 J3 IOA11 S11 R39 R44 R21 0.2V 1 2 3 4 VCC33 1 2 AUX S9 13.6k R59 CECL2009 B S7 1 2 JP2 AUDIO S5 10k R37 RESETB S3 7.5k R34 X32O R36 4.7K C NC VDACREF VCC33 R33 11 10 8 7 6 5 4 3 2 1 9 WP CD DAT1 DAT0 VSS CLK VDD VSS CMD DAT3 DAT2 AD_key2 S1 1.5k MEMORY 4.7R 11 AD_key1 R20 R1 TF_IN U1 SDCON 10U 13 14 15 16 17 18 19 20 21 22 23 24 R17 10K/NC VCC33 X12MI RTCVCC X32I X32O 36 35 34 33 32 31 30 29 28 27 26 25 VCC33 P12M_VLF V33_RTC X32KI X32KO VSS-RTC LINEIN0 LINEIN1 V33_ADDA DACOL DAVREF DACOR SDVCC 1 R12 R13 R14 D1 RED led_0603 SDC_IN 6 3.3V 1 VCC33 1 2 3 4 5 6 7 8 9 10 11 12 C3 2.2UF 10uF 2 VCC18 IOA0 IOA1 IOA2 IOA3 IOA15 IOA4 IOA5 IOA6 IOA8 IOA9 IOA10 IOA11 IOA12 IOA13 IOA14 FM_IN_L FM_IN_R LINE_IN_L LINE_IN_R VSS-DAC Status LED D V50IN V33OUT DP DN RESETB IOB6 IOB5 IOB4 IOB3 IOB2 IOB1 IOB0 U2 If IR used, need pull high INT1 3V-5V1 VSS VCC33 SDCARD 12 C2 10U VCC33 C5 VSS VCC33 1 SDC VSS 4.7K 22U C1 2 13 0 1 2 R2 VCC33 DP DN RESETB IOB6 I2CSCL IOB5 I2CSDA IOB4 INT2 IOB3 INT1 IOB2 SDCD0 IOB1 SDCCLK IOB0 SDCCMD INT1 MCU 3 当断电要保持时钟: RTCVCC可从电池不经开关取电。 RTCVCC加一个2.2UF电容, RTCVCC电压为3V-5V,电流为18UA左右, 当断电不要保持时钟时直通VCC33 RTCVCC 5V IR IC1 4 48 47 46 45 44 43 42 41 40 39 38 37 5 1