1、1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date 24 Apr 2017 Sheet of File E 3S Audio DDB Audio ddb Drawn By C3 0 1uF C5 1uF C6 33nF R1 10K 1 8V OUT PLLF GND GND UDM UDP R7 1 5K 3 3V D D 5V IN 3 3V VCM VREFP AGND AGND C22 1uF R8 4 7K 3 3V AVDDVO23 3 3V US B 5V 1 8V GND 3 3V AVDD H
2、P OU T R HP OU T L AGND GND USB 5V GND C100 1uF C8 4 7uF C23 1uF MIC L OUT L OUT R AGND C17 100uF C18 100uF MIC L UDM UDP 1 8V OUT PLLF GND 3 3V 1 8V C9 4 7uF GND 1 2 3 4 J2 USB PAD 3 3V R11 1K AGND C27 4 7uF R14 5 1K VO23 C12 0 1uF GND 1 8V C7 4 7uF C11 0 1uF MC U IIC S CL MC U IIC S DA GND 3 3V VC
3、C23 1 APLL VCCP32 APLL VCCP183 APLL LPF4 APLL GND5 VOLUP N6 VOLDN N7 UDN8 SC L UP 11 STE RE O MIC 10 SDA UP 12 VCC IO 13 GND 14 VCCK 15 ADC INR 19 ADC INL 20 PWRP 21 VREFP 22 VCM 23 PWRN 24 NV SS 25 HP OU T L 26 HP OU T R 27 NVDD 28 GND5A 29 VCC 18 30 VCC 5A 31 VCC 33 32 UDP 9 SC L 24 C0X 16 SDA 24C
4、0X 17 PLAY PAUSE N 18 U1 QFN32 SW1 VOLDN N SW2 VOLUP N VOLDN N VOLUP N GND GND SW3 PLAY PAUSE EN PLAY PAUSE EN GND A01 A12 A23 GND4 SDA 5 SCL 6 WP 7 VCC 8 U2 24C04 SCL 24C0X SDA 24C0X 3 3V R10 10K R9 10K 3 3V GND VOLDN N VOLUP N PLAY PAUSE EN SC L 24 C0X SDA 24C0X J1 HP OUT 1 2 J3 MCU IIC MCU IIC SC
5、L MCU IIC SDA MIC R C24 1uF MIC R R12 1K AGND C26 4 7uF R13 5 1K VO23 AGND J4 MIC IN INPUT L INPUT L D1 LED R15 1K GND USB 5V R16 0R GND L1 FB GND AGND L2 FB 3 3V 3 3V AVDD C2 4 7uF C1 0 1uF AGND C21 1uF C25 0 1uF C4 1uF 5V IN GND C19 0 1uF C20 4 7uF R6 0R USB 5V R2 39R C13 0 22uF R3 39R C14 0 22uF AGND AGND R4 39R C15 0 22uF R5 39R C16 0 22uF AGND AGND HPOUT R HPOUT L OUT L OUT R 预留RC滤波 降低底噪 电容靠近IC 1 请注意电源15 20mil 尽量用GND包裹 少交叉 2 请注意耳机麦克风模拟信号要15 20mil 用地包裹 尽量不要和电源交叉 Layout注意 SSS1530 OP 20170424
