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Bkm-68x simple

skumlos·bkm-68x-simple

Bkm-68x simple PCB layout, top view — open source FPGA board by skumlos
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About the Bkm-68x simple PCB

Bkm-68x simple is an open source FPGA PCB design by skumlos, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 230.4 × 233.5 mm, with 206 components from 66 distinct parts.

Its main chip is the 10M08SC, from the FPGA family. Other key parts include the ADG1611BCPZ, THS7374, ISL59885, ADG734 and 74LVC14A. By type, the board carries 84 resistors, 68 capacitors, 18 ICs, 14 diodes, 13 connectors and 6 switches.

From the project

Simplified BKM-68X

This project aims to serve as an alternative to the crazy expensive Sony BKM-68X RGB/YPbPr input card for Sony BVM-A monitors like the BVM-A14F5, A20F1, A24E1W and A32E1W (M/U/A).

The board is rather simple albeit has some components that are not so simple to hand solder, and it also has a quite high component count (due to a load of resistors and caps).

It's buildup is basically an analog section that deals with video, and a digital section that speaks to the monitor.

Main components on the Bkm-68x simple

ADG1611BCPZTHS7374ISL59885ADG73474LVC14ATC7WH125KC2520Z5074LVC541ABA33BC0FP-E2TC7SZ125FULM2990SX-5.0BA50BC0FP-E210M08SCSN74LVC1G14DBVISL408974LVC2G34

Bkm-68x simple bill of materials (BOM)

206 components, 66 distinct parts.

QtyPartRefs
1
ADG1611BCPZ
U1
1
THS7374
U2
1
ISL59885
U3
1
ADG734
U4
3
74LVC14A
U5, U6, U7
1
TC7WH125
U8
1
KC2520Z50
U9
1
74LVC541A
U10
1
BA33BC0FP-E2
U11
1
TC7SZ125FU
U12
1
LM2990SX-5.0
U13
1
BA50BC0FP-E2
U14
1
10M08SC
U15
1
SN74LVC1G14DBV
U16
1
ISL4089
U17
1
74LVC2G34
U19
1
MMBT3904
Q1
2
mezz-conn-02x50
CN985, CN986
1
PR_R
J1
1
Y_G
J2
Show 46 more
QtyPartRefs
1
PB_B
J3
1
EXT_SYNC
J4
1
JTAG
J12
1
PR_R_OUT
J13
1
JTAG
J14
1
Y_G_OUT
J15
1
PB_B_OUT
J16
1
EXT_SYNC_OUT
J17
1
Conn_01x02_Male
J18
2
Keystone 7794
H1, H2
2
FORCE_VIDEO
SW1, SW2
1
PR_R_TERM
SW3
1
Y_G_TERM
SW4
1
PB_B_TERM
SW5
1
EXT_SYNC_TERM
SW6
12
NM
D1, D2, D3, D4, D5, D6, D7, D8 +4
1
DEBUG1
D13
1
DEBUG2
D14
24
0.1uF
C1, C2, C3, C4, C5, C6, C7, C9 +16
1
56nF
C11
3
100uF
C14, C16, C61
2
330uF/LOW_ESR
C18, C26
5
10uF
C19, C25, C28, C68, C70
1
1uF
C23
2
100uF
C24, C58
1
330uF/LOW_ESR
C29
21
0.1uF
C30, C31, C32, C33, C34, C35, C36, C37 +13
4
10pF
C50, C51, C52, C53
1
100pF
C54
1
470pF
C55
1
220pF
C65
1
NM
C69
7
75R
R1, R2, R3, R4, R10, R12, R14
3
150R
R9, R11, R13
27
68R
R15, R16, R17, R18, R19, R20, R21, R22 +19
10
47R
R24, R26, R27, R28, R29, R30, R31, R32 +2
4
47K
R33, R34, R35, R39
1
22K
R37
17
22R
R40, R41, R54, R55, R56, R57, R58, R59 +9
9
10K
R44, R45, R46, R73, R74, R75, R77, R81 +1
1
1K
R76
1
100R
R80
1
470R
R82
1
390R
R83
1
NM
R89
1
0R
R90

Bkm-68x simple design files

The KiCad project lives in the skumlos/bkm-68x-simple repository on GitHub; these links point at the commit this page was built from.

Bkm-68x simple: common questions

What microcontroller does the Bkm-68x simple use?

The Bkm-68x simple is built around the 10M08SC, from the FPGA family.

How big is the Bkm-68x simple PCB?

The Bkm-68x simple measures 230.4 × 233.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bkm-68x simple?

206 components, from 66 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bkm-68x simple design files?

From the skumlos/bkm-68x-simple repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Bkm-68x simple design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which skumlos chose for the repository.

Can I test firmware for the Bkm-68x simple 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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