INDEX
1. INDEX 2. BLOCK 3. POWER BATTERY 4. LCD LVDS HDMI 5. TVIN VGA CVBS 6. USB HOST HUB 7. USB OTG UART TF 8. EMAC ETHERNET 9. AUDIO HP MIC SPK 10. WIFI BT 11. GPS 3G 12. KEY IR MOTO G-SENSOR SATA 13. CAMERA_CSI 14. EXTEND CON 15. CONNECT
DCIN-5V PMOS
Q17
VSATA-5V
100K
BAT-IN 100K R146 C83 22uF/10V R102
C129 22uF/10V
R144
10K
R152
SATA_PWR_EN
Q18
100K
RERVISION
Title
A20Clover MainBoard: POWER_BATTERY
SHEN ZHEN RERVISION University City New Material Industral Park NanShan, ShenZClover MainBoard: INDEX
Size A3 Date: Document Number 20140816-0002 Monday, March 05, 2012 Sheet 1 of 15 Rev P1
RERVISION
Title
A20Clover MainBoard: LCD_LVDS_HDMI
Size A3 Date: Document Number 20140816-0002 Monday, March 05, 2012 Sheet 4 of 15 Rev P1
TVIN VGA
IN0 R38 75R 1% 0.1uF C37 R42 330R L2 8.2uH TVIN0 VCC-5V 22pF C41 47pF C45 C62 0.1uF(NC) J5 15 14 13 ESD2 ESD1 12 11 17 VGA_SDA R43 L3 330R R39 75R 1% 22pF C42 47pF C46 VGA_SCL TVIN1 LCD_VSYNC LCD_HSYNC 0(NC)
DCIN-12V
VSATA-12V U23 1 2 S1 3 S2 S3 4 G 8 D4 7 D3 6 D2 5 D1 C132 10uF/16V
SATA POWER
BATTERY
BATTERY-3V 2 D12 DCIN-5V 1 2 BT1 1 BACKUP
10uF/16V 10K
R155
C125
LCD_D0 LCD_D2 LCD_D4 LCD_D6 LCD_D8 LCD_D10 LCD_D12 LCD_D14 LCD_D16 LCD_D18 LCD_D20 LCD_D22 LCD_VCLK LCD_VSYNC PWM0 LCD_BL_EN TP_X1 TP_Y1 TP_INT TWI2_SCK
J19 1 VCC 2 D+ 3 D4 GND USB_A_90
USB1
DM2 DP2 USB_REF USB_X1 USB_X2 DM3 DP3 DM4 DP4 USB_RESET USB-AVDD
USB-AVDD
ESD5
USB-DVDD 0.1uF
ESD6
1 2 3 4 5 6 7 8 9 10 11 12 13 14
8.2uH
TVIN3
47pF C48
N-MOS TWI2_SCK S S G D
Q2 VGA_SCL D TWI2_SDA
R83
SI2302
VCC-3V3
R84
10K
G
2K
VCC-5V
VCC-3V3
VCC-5V
J23 VGA_R VGA_G VGA_B 5 4 3 2 1 5P-2.0MM CVBS R82 75R 1% 270pF BAT54S C67 330pF C68 L6 1.8uH D6 HPR HPL 3 R143 R145 0 0 VIDEO
DC_IN
SW1 J1 1 2 3 DC_9V-12V 1 2 SW_KEY-SPDT 2.6A / 16V F1
Default: Do not paste this circuit, and pase R149 and R150
DCIN-12V DCIN-5V D13 U1 2 7 8 4 R1 0.1uF C3 IN EN SS GND BS SW FB COMP 1 3 5 6 10uF C4 L1 INDUCTOR-CD5D28 C112 10uF 3.9nF C5 10K(1%) R3 R4 47K(1%) C6 22uF/10V C7 22uF/10V SATA_PWR_EN 0.1uF C113 6 4 2 U19 VIN CE GND LX OVP FB 1 5 3 R148 L9 4.7uH 1 2 BOOST-IN VCC-5V
10uH
EC1 220uF/16V
+
C1 10uF/16V C1206
C2 10uF/16V C1206
100K
MP2307 SOP8
124K
9
C109 5.1K(1%) 10uF
BOOST-IN VCC-3V3
6.8K R2
AP3032 0.2V
U15 4 1 2 C75 22uF/10V VIN EN GND FB 5 LX 3
L7
4.7uH
L4D16 453K(1%) R90 0.1uF EC2 100uF C74 R149 D7 100K(1%) R91 PWR_LED R100 VCC-3V3 1K R150 0 0 VCC-5V VHDMI-5V
AP3407/BL8021
1. If use one chip to boost 5V, paste R149 R150 1. If use two chip to boost 5V, do not paste R149 R150
22pF
CVBS OUT
C66 J32 1 2 3 4
1
IN0
J12 1 GND 2 IN
IN2
J27 1 GND 2 IN VCC-3V3
J26
J33
IN1
1 GND 2 IN
IN3
1 GND 2 IN
2
RERVISION
Title
A20Clover MainBoard: TVIN_VGA_CVBS
U7 HTX2P HTX2N HTX1P HTX1N 1 2 3 4 5 IN1 IN2 GND1 IN3 IN4 OUT1 OUT2 GND2 OUT3 OUT4 10 9 8 7 6
J4
20
21
rRClamp0524P /NF U8 HTX0P HTX0N HTXCP HTXCN 1 2 3 4 5 IN1 IN2 GND1 IN3 IN4 OUT1 OUT2 GND2 OUT3 OUT4 10 9 8 7 6
AVDD DM2 DP2 REF AVDD X1 X2 DM3 DP3 AVDD DM4 DP4 /RESET TEST
DP1 DM1 DP0 DM0 V33 V5 PWEREN1 OVCUR1 PWREN2 OVCUR2 PGANG PSELF DVDD GND
Size A3 Date: Document Number 20140816-0002 Monday, March 05, 2012 Sheet 3 of 15 Rev P1
T1
BAT-IN
BOOST-IN
T2
Q10
R147
LCD LVDS
Differential pairs Z0= 100 ohm
VGA-DB15-RAF
BAT54S
330R R40 75R 1% 22pF C43 47pF C47
1
2
BAT54S VCC-5V N-MOS S R85 10K G G 1
IN2
0.1uF
C39
R44 L4
8.2uH
TVIN2
IN3 R41 75R 1%
0.1uF
C40
R45 L5 330R 22pF C44
SHEN ZHEN RERVISION University City New Material Industral Park NanShan, ShenZhen, China Title
A20Clover MainBoard: BLOCK
Size A3 Date: Document Number 20140816-0002 Monday, March 05, 2012 Sheet 2 of 15 Rev P1
Size A3 Date: Document Number 20140816-0002 Monday, March 05, 2012 Sheet 5 of 15 Rev P1
VCC-USB
USB HUB
DM1 DP1 USB-AVDD U2 ESD-0402-LF ESD-0402-LF ESD3 ESD4
LCD_D1 LCD_D3 LCD_D5 LCD_D7 LCD_D9 LCD_D11 LCD_D13 LCD_D15 LCD_D17 LCD_D19 LCD_D21 LCD_D23 LCD_VDEN LCD_HSYNC LCD_PWR_EN TP_X2 TP_Y2 TP_WAKEUP TWI2_SDA
HDMI
VCC-5V
VCC-5V
J7 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50