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Rev:1.0

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4 3 2 1 RTCVDD +3V3 pin20 RTCVDD和pin21 1.8V使用外部E2prom时，应短接在一起 LDT LIN-R LIN-L Y1 32.768 105 C3 C1 105 SD_DAT DM DP 32KO 32KI DACVDD VCOM 1 2 3 4 5 6 7 8 9 10 11 12 LIN-RLR2 15K LC2 1U AUXR 105 Line-IN C5 1U AUXL/TX P21 P20 P02 DVDD RTCVDD P00 P01 P14 VPP P25 P24 VSSIO SD_CMD SD_CLK AD_KEY +1.8V RTCVDD MUTE IIC_CLK IIC_DAT VPP/IR AUXR AUXL/TX 24 23 22 21 20 19 18 17 16 15 14 13 C2 104 2R1 360K SD_CMD SD+3V3 SD_CLK AOR1 47K/NC AMP Mute High ON SR1 4R7 RTCVDD 2R2 300K SD_DAT MUTE AOR2 47K/NC AMP Mute LOW ON SD/TF 省得24C02 时 ,RTCVDD 取电池分压 . 电容 2C1 不能省 . 使用外部24C02时,RTCVDD取电路省掉,RTCVDD短接到+1.8V,2C1可省 高MUTE贴AOR1,低MUTE贴AOR2 MCU DACR DAC2 105 RCH 3 3 HL+ CR1 560R DC+5V AR1 24K HLBAT+3V7 MUTE BAT+3V7 L CREF R2 1.5K AK2 PREV/V- R3 3.3K AK3 NEXT/V+ R4 5.1K AK4 Prev. R5 7.5K AK5 Next. R6 10K AK6 Vol- R7 13.6K AK7 Vol+ R8 18K Power KC1 104 LED INDICATOR USB1 104 SPK1 SPK 4 ohm HRBAT+3V7 R HL+ HL- 1 2 HR+ HR- 1 2 RCH AR2 150K AU1 LC2011 SPK2 SPK 4 ohm AMP 22K AK9 MODE BAT3V7 R10 30K AK10 EQ R11 36K AK11 Repeat R12 47K AK12 Play/(HoldON_FM/UD/SD) R13 64K AK13 UD/SD BAT+3V7 1 2 3 4 1 5 2 4 R9 DM DP EC1 220UF/10V/NC IR1 REM DC+5V 1 2 3 4 3 2 VPP/IR 1 BAT3V7 CD1 IN5819 2M LDT 2 1 CR2 2R2 RC1 BAT1 IIC_CLK IIC_DAT 2.0MM-2PIN GR1 GR2 1 FMANT1 RU1 1 2 3 4 5 6 7 8 BAT+3V7 MIMI-USB1 +3V3 0R 0R 1K 1K P02 P03 GND R L GND VDD XI 16 15 14 13 12 11 10 9 RC2 1U RC3 1U AUXR AUXL/TX XC1 15P IR3 1R/2R2 32KO +3V3 FM-Moudle-SOP16 FL1 100nH FM-Radio IR5 2M/NC FM Recevier ADKEY Boombox MODE 3 IR2 IR4 102P P01 GND GND RF GND GND CLK DIO 1 IR USB BAT CHARGER POWER-SW 数字地、收音地、功放地在电池的负极处短路 4 OL+ OR+ PGNDPGND OLORPVDDPVDD MUTE SD VDD GND INL+ INR+ CREF NC HR+ 2 POWER1 SW1 R14 16 15 14 13 12 11 10 9 数字 功放 IC. 支持收音 , 不干扰接收效果 3 AK8 AD_KEY 104 PLAY RC4 AK1 AR1 150K 24P 0R 220UF/10V R1 330RIIC_CLK 104 LCH LED-PLAY BLR1 LED2 Play Indicate 1 2 3 4 5 6 7 8 AC3 J3 DC Indicate LED1 LED-DC AC2 1 2 AC1 +3V3 KJ1 AD_KEY +3V3 AEC1 BAT+3V7 2 4 SD1 SD Socket U1 LC2093 DACL DAC1 105 LCH 104 15K LC1 C4 +3V3 BAT+3V7 DACL DACR LIN-LLR1 P22 DM DP 32KO 32KI DACVDD VCOM DACVSS DACL DACR VDDIO LDO5V DAT2 CD/DAT3 CMD VSS VDD CLK VSS DAT0 DAT1 CD WP 2C1 4 9 1 2 3 4 5 6 7 8 10 11 105 PJ1 LINE-IN 4 3 2 1 +3V3 BAT3V7 IRR1 1M 2 Rev:1.0 1