MP3播放器原理图

1 1 2 2 3 3 4 4 DD CC BB AA Title NumberRevisionSize A4 Date 2017 9 5Sheet of File F PCB MP3 SchDoc Drawn By V33REG 1 V50REG 2 VSSREG 3 DACOL 4 VCOM 5 DACOR 6 LINEIN R L 7 IOA4 8 IOA3 9 IOA2 10 DM 11 DP 12 IOA0 13 IOB1 14 IOB0 15 IOB2 16 U1 GPD2856C DAT2 1 CD DAT3 2 CMD 3 VDD 4 CLK 5 VSS 6 DAT0 7 DAT1 8 CD 9 NC 10 NC 11 NC 12 NC 13 TF1 TF CARD GND 105C5 GND VCC33 V50 REG GND 105C2 GND DACOL VCOM DACOR ADC IOB2 IOB0 IOB1 IOA0 DP DM GND 2K R7 0 R5 GND IOB2 IOB0 IOB1 SHUTDN 1 BYPASS 2 IN 3 IN 4 VO1 5 VDD 6 GND 7 VO2 8 U2 8002A 105C6 GND VCC33 V50 REG ROUT ROUT 47KR8 10KR9DACOL K1 JZ SW2 ADC 22KR1VCC33 2 2KR2 K2 JZ SW2 4 7KR3 K3 JZ SW2 6 8KR4 K4 JZ SW2 22KR10 GND 上一首 音量减 下一首 音量加 播放 暂停 循环 4 7KR6 D1 GND IOA0 1 2 P1 Header 2 ROUT ROUT VBUS 1 D 2 D 3 GND 4 shell 5 shell 5 USB1 USB 1 V50 REG DP DM 1 2 3 PHONE1 PHONE M DACOL DACOR V50 REG GND K1 K2 K3 K4 105C1 105C8 106 C4 105C7 1 2 3 4 5 6 P2 Header 6 K1 K2 K3 K4 VBUS 1 D 2 D 3 GND 4 shell 5 shell 5 USB2 USB 1 V50 REG PIC101PIC102 COC1 PIC201PIC202 COC2 PIC401 PIC402 COC4 PIC501PIC502 COC5 PIC601PIC602 COC6 PIC701PIC702 COC7 PIC801PIC802 COC8 PID10APID10K COD1 PIK101 PIK102 COK1 PIK201 PIK202 COK2 PIK301 PIK302 COK3 PIK401 PIK402 COK4 PIP101 PIP102 COP1 PIP201 PIP202 PIP203 PIP204 PIP205 PIP206 COP2 PIPHONE101 PIPHONE102 PIPHONE103 COPHONE1 PIR101PIR102 COR1 PIR201PIR202 COR2 PIR301PIR302 COR3 PIR401PIR402 COR4 PIR501 PIR502 COR5 PIR601PIR602 COR6 PIR701 PIR702 COR7 PIR801PIR802 COR8 PIR901PIR902 COR9 PIR1001PIR1002 COR10 PITF101 PITF102 PITF103 PITF104 PITF105 PITF106 PITF107 PITF108 PITF109 PITF1010 PITF1011 PITF1012 PITF1013 COTF1 PIU101 PIU102 PIU103 PIU104 PIU105 PIU106 PIU107 PIU108PIU109 PIU1010 PIU1011 PIU1012 PIU1013 PIU1014 PIU1015 PIU1016 COU1 PIU201 PIU202 PIU203 PIU204PIU205 PIU206 PIU207 PIU208 COU2 PIUSB101