Sbc allwinner a13

vd-rd·sbc_allwinner_a13·hardware/module.kicad_pcb

Sbc allwinner a13 PCB layout, top view — open source board by vd-rd

About the Sbc allwinner a13 PCB

Sbc allwinner a13 is an open source PCB design by vd-rd, published on GitHub. It is a 4-layer board measuring 80 × 42 mm, with 163 components from 42 distinct parts.

Other key parts include the USBLC6-2P6, W25Q128JVS, A13, DDR3L-x16 and RTL8188CUS. By type, the board carries 84 capacitors, 50 resistors, 10 ICs, 6 inductors, 5 connectors and 3 diodes.

It belongs with the iot & wireless, displays & leds and audio designs in this gallery.

From the project

Open hardware compute module with Allwinner A13 (ARM-A8 @1GHz), DDR3 (max 512MB) and expansions (USB, GPIO, WiFi, LCD, Audio)

A13 features a few power rails: VDD-CPU - TBD - from AXP209 VDD-INT - 1.2V - from DCDC VDD-GPIO - 3V3 - from AXP209 VDD-DRAM - 1V5 - from DCDC * AVCC - 3V - from AXP209

The datasheet states that AVCC and VDD-DRAM must be present at all times (even standby). VDD-INT and VDD-CPU can't be tied together because VDD-CPU is DVS enabled.

A13 DRAM controller doesn't provide DDR-CS. On the memory side the pin is tied to GND. Memory tuning should be performed as described here

Sbc allwinner a13, from the project README — From the project README

Main components on the Sbc allwinner a13

USBLC6-2P6 W25Q128JVS A13 DDR3L-x16 RTL8188CUS MCP1640CH AP22811 AXP209 AP61100

Sbc allwinner a13 bill of materials (BOM)

163 components, 42 distinct parts.

Qty	Part	Footprint	Refs
1	USBLC6-2P6	SOT-23-6	U1
1	W25Q128JVS	SOIC-8_5.3x5.3mm_P1.27mm	U4
1	A13	LQFP-176_20x20mm_P0.4mm	U100
1	DDR3L-x16	BGA-96_9x14mm_P0.8mm	U200
1	RTL8188CUS	RTL8188CUS	U300
1	MCP1640CH	SOT-23-6	U600
1	AP22811	SOT-23-5	U700
1	AXP209	QFN-48-1EP_6x6mm_P0.4mm_EP4.2x4.2mm_ThermalVias	U800
2	AP61100	SOT-563	U900, U910
1	24MHz	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	Conn_02x18_Odd_Even	PinHeader_2x18_P2.54mm_Vertical	J1
1	USB_B_Micro	USB_Micro-B_Amphenol_10103594-0001LF_Horizontal	J100
1	Micro_SD_Card_Det	MEM20610118800A	J101
1	Conn_02x05_Odd_Even	PinHeader_2x05_P1.27mm_Vertical	J200
1	Conn_02x22_Odd_Even	PinHeader_2x22_P1.27mm_Vertical	J300
1	Antenna_Shield	U.FL_Hirose_U.FL-R-SMT-1_Vertical	AE1
2	SW_Push	SW_SPST_EVQP7C	SW1, SW2
1	Thermistor_NTC	R_0603_1608Metric	TH1
1	ESD9B5.0ST5G	D_SOD-923	D2
1	LED_Small	LED_0603_1608Metric	D3

Show 22 more

Qty	Part	Footprint	Refs
1	LED_BAGR	LED_RGB_Optosupply_OSTB0805C1E-A-0.8T	D4
2	1uH	L_Wuerth_MAPI-2510	L1, L910
1	4.7uH	L_Wuerth_MAPI-2510	L2
3	4.7uH	L_Wuerth_MAPI-2512	L3, L4, L5
49	100nF	C_0402_1005Metric	C1, C4, C6, C10, C11, C12, C13, C14 +41
21	10uF	C_0603_1608Metric	C2, C9, C43, C601, C701, C702, C807, C810 +13
2	22pF	C_0402_1005Metric	C3, C7
6	4.7uF	C_0603_1608Metric	C5, C811, C812, C821, C844, C860
5	1uF	C_0402_1005Metric	C8, C36, C824, C826, C828
1	100uF	CP_EIA-2012-15_AVX-P	C210
2	240	R_0402_1005Metric	R1, R4
8	24	R_0402_1005Metric	R2, R3, R10, R11, R12, R13, R14, R15
7	200k	R_0402_1005Metric	R5, R19, R22, R23, R823, R901, R911
3	180	R_0402_1005Metric	R6, R7, R8
9	2.2k	R_0402_1005Metric	R9, R21, R188, R189, R200, R201, R801, R802 +1
5	47k	R_0402_1005Metric	R16, R20, R701, R825, R848
2	562k	R_0402_1005Metric	R17, R602
1	30m	R_0603_1608Metric	R18
1	976k	R_0402_1005Metric	R601
1	133k	R_0402_1005Metric	R902
1	44.2k	R_0402_1005Metric	R910
10	24	R_Array_Concave_4x0402	RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN8 +2

Sbc allwinner a13 design files

The KiCad project lives in the vd-rd/sbc_allwinner_a13 repository on GitHub; these links point at the commit this page was built from.

Layouthardware/module.kicad_pcb
Schematichardware/module.kicad_sch

Sbc allwinner a13: common questions

How big is the Sbc allwinner a13 PCB?

The Sbc allwinner a13 measures 80 × 42 mm, has 4 copper layers and is 0.948 mm thick.

How many components are on the Sbc allwinner a13?

163 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the Sbc allwinner a13 design files?

From the vd-rd/sbc_allwinner_a13 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Sbc allwinner a13 design in my own project?

The repository has no license, so all rights stay with vd-rd. Use it as a reference, and ask the author before reusing the design.

Similar boards