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Pcb

vgacentrifuge·pcb·centrifuge_combined/centrifuge.kicad_pcb

Pcb layout, top view — open source FPGA board by vgacentrifuge

About the Pcb

Pcb is an open source FPGA PCB design by vgacentrifuge, published on GitHub. It is a 6-layer board measuring 177.7 × 96.7 mm, with 398 components from 82 distinct parts.

Its main chip is the XC7A100T-FTG256, from the FPGA family. Other key parts include the S25FL127SABMFV10, CY7C1370KV33, TVP7002, THS8136 and LSF0102. By type, the board carries 188 capacitors, 87 resistors, 42 test points, 22 ICs, 22 connectors and 17 jumpers.

It belongs with the dev boards & breakouts and displays & leds designs in this gallery.

From the project

The repository for designing the PCB for the VGA-mixer in TDT4295

It should support the SVGA resolution 800x600 @ 60Hz and 16-bit color depth. The colors are stored as (5,6,5)-bit RGB values internally.

On the board there are several buttons and an LCD screen, allowing you to pick between different modes: - Showing only the foreground - Showing only the background - Overlaying with chroma keying appied to the foreground - Showing the foreground at 25%, 50% or 75% transparancy - Adding the colors (double exposure)

Main components on the Pcb

XC7A100T-FTG256S25FL127SABMFV10CY7C1370KV33TVP7002THS8136LSF0102RCLAMP0524PATCTM24C02-WMNRCLAMP3324P.TNTDFR0555LCD16x2LTPS54294EFM32GG990F10244x4_keyboard

Pcb bill of materials (BOM)

398 components, 82 distinct parts.

QtyPartRefs
1
XC7A100T-FTG256
U1
1
S25FL127SABMFV10
U2
1
CY7C1370KV33
U3
2
TVP7002
U4, U8
1
THS8136
U5
3
LSF0102
U6, U9, U11
3
RCLAMP0524PATCT
U7, U13, U14
2
M24C02-WMN
U10, U12
1
RCLAMP3324P.TNT
U15
1
DFR0555
U501
1
LCD16x2L
U502
3
TPS54294
U503, U504, U505
1
EFM32GG990F1024
U506
1
4x4_keyboard
U507
6
BSN20
Q1, Q2, Q3, Q4, Q5, Q6
1
Q_PMOS_DGS
Q501
1
Q_NMOS_GSD
Q502
2
ECS-2333-270-BN
X1, X2
1
EC2620TTS-100.000MTR
X3
1
VXM7-1366-48M0000000
Y501
Show 62 more
QtyPartRefs
1
FPGA JTAG
J1
3
Conn_01x15
J2, J3, J4
2
Conn_02x06_Odd_Even
J501, J516
1
MCU_extra
J503
1
FPGA eXtra
J504
1
FPGA_SPI
J505
1
DDCI2C2
J506
1
ADC_I2C
J507
1
ADC_RST
J508
1
USB_B_Micro
J509
1
Barrel_Jack
J510
1
PowerIn
J511
1
PowerPads
J512
1
SD_Card
J513
1
DEBUG
J514
1
Extra MCU GPIO
J515
1
DDCI2C1
J517
1
FPGA 6XTRA
J518
1
FPGA EXTR4
J519
7
Jumper_2_Bridged
JP1, JP10, JP15, JP16, JP17, JP22, JP23
2
Jumper_3_Open
JP8, JP9
8
SolderJumper_3_Bridged12
JP11, JP12, JP13, JP14, JP18, JP19, JP20, JP21
1
SW_MEC_5E
SW1
42
TestPoint
TP1, TP2, TP3, TP4, TP5, TP10, TP11, TP12 +34
1
LED_YELLOW_2V_20mA
D501
3
1.5u
L501, L502, L504
2
2.2u
L503, L505
1
3.3u
L506
6
10u
C1, C2, C7, C8, C539, C550
37
0.1u
C3, C4, C5, C6, C9, C13, C14, C15 +29
26
1u
C10, C11, C12, C16, C18, C23, C26, C29 +18
15
10n
C17, C19, C21, C22, C25, C28, C32, C46 +7
6
1n
C24, C27, C30, C53, C56, C59
2
4.7n
C37, C66
1
0.1u tantalum
C69
4
47u X5R/X7R
C72, C108, C121, C122
16
4.7u
C73, C75, C84, C86, C88, C90, C92, C94 +8
1
100u tantalum 1-40 mOhm or X5R/X7R
C74
29
470n
C76, C77, C78, C79, C80, C81, C83, C85 +21
1
330u tantalum 5-40 mOhm
C82
12
22u
C501, C502, C503, C504, C505, C506, C529, C530 +4
1
100u
C507
6
10u
C508, C509, C510, C523, C524, C525
12
100n
C511, C512, C513, C514, C515, C516, C520, C521 +4
11
100n
C535, C536, C537, C538, C541, C542, C544, C546 +3
2
12p
C543, C545
12
4.7k
R1, R2, R7, R11, R25, R26, R30, R31 +4
9
75
R3, R4, R5, R48, R49, R50, R51, R52 +1
1
3.8k
R6
23
10k
R8, R9, R14, R15, R34, R35, R40, R41 +15
2
330
R10, R54
10
DNI
R12, R13, R23, R24, R28, R29, R32, R33 +2
14
1k
R16, R17, R18, R19, R20, R21, R36, R37 +6
2
1.5k
R22, R27
1
5.6M
R507
1
6.81k
R508
6
22.1k
R509, R511, R513, R518, R520, R522
1
33k
R510
2
73.2k
R512, R519
1
30.1k
R517
1
124k
R521
1
62
R528

Pcb design files

The KiCad project lives in the vgacentrifuge/pcb repository on GitHub; these links point at the commit this page was built from.

Pcb: common questions

What microcontroller does the Pcb use?

The Pcb is built around the XC7A100T-FTG256, from the FPGA family.

How big is the Pcb?

The Pcb measures 177.7 × 96.7 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the Pcb?

398 components, from 82 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pcb design files?

From the vgacentrifuge/pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Pcb design in my own project?

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

Can I test firmware for the Pcb without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.

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