MusicBrain VCA8 - 8x VCA slot card
About the MusicBrain VCA8 - 8x VCA slot card PCB
MusicBrain VCA8 - 8x VCA slot card is an open source PCB design by MarkWestbroek, published on GitHub under the MIT license. It is a 2-layer board measuring 80 × 45 mm, with 85 components from 14 distinct parts.
Other key parts include the SSI2164, TL074 and DAC128S085CIMTX. By type, the board carries 40 resistors, 37 capacitors, 5 ICs and 3 connectors.
It belongs with the audio designs in this gallery.
From the project
A central brain running on teensy or a lighter MCU to process any control signals (MIDI, CV, our own) into the same but adding logic, ADSRs, DCOs, CV matrices etc. to it
Eerste bord van het poly-analog-spoor (doc/poly-analog-spec.md): 8 exponentiële VCA's met per-stem dCV-level vanuit de Brain = digitale envelopes op analoge stemmen. Gen-2-slotkaart 80×45, busvoeding (< 50 mA per rail), geen MCU.
Status: bestelbaar — ERC 0, netcheck OK, DRC 0/0, fab-pakket in fab/. Geroute via de freerouting-pijplijn met --route-gnd: de dichte centrale chipband kerft beide GND-vlakken zó weg dat losse GND-pads (chip- grounds, ontkoppel-C's) de zone-vulling niet bereikten — GND als routeerbaar net oplossen gaf een volledig verbonden bord in één run (best-of-4). Rot van…
Main components on the MusicBrain VCA8 - 8x VCA slot card
MusicBrain VCA8 - 8x VCA slot card bill of materials (BOM)
85 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | SSI2164 | SOIC-16_3.9x9.9mm_P1.27mm | U1, U2 |
| 2 | TL074 | SOIC-14_3.9x8.7mm_P1.27mm | U3, U4 |
| 1 | DAC128S085CIMTX | TSSOP-16_4.4x5mm_P0.65mm | U5 |
| 1 | C2894992 BUS | PinHeader_2x12_P2.54mm_Horizontal | J1 |
| 1 | C2687688 IN | PinHeader_1x10_P2.54mm_Horizontal | J2 |
| 1 | C2687688 UIT | PinHeader_1x10_P2.54mm_Horizontal | J3 |
| 8 | 1N2 1n2 | C_0805_2012Metric | C11, C12, C13, C14, C15, C16, C17, C18 |
| 8 | 100P 100p | C_0805_2012Metric | C21, C22, C23, C24, C25, C26, C27, C28 |
| 8 | 4U7 4u7 | C_0805_2012Metric | C31, C32, C33, C34, C35, C36, C37, C38 |
| 10 | 100N 100n | C_0805_2012Metric | C41, C42, C43, C44, C45, C46, C47, C48 +2 |
| 3 | 10U 10u | CP_Elec_4x5.3 | C61, C62, C63 |
| 16 | 20K 20k | R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8 +8 |
| 16 | 220R | R_0805_2012Metric | R11, R12, R13, R14, R15, R16, R17, R18 +8 |
| 8 | 100R | R_0805_2012Metric | R41, R42, R43, R44, R45, R46, R47, R48 |
MusicBrain VCA8 - 8x VCA slot card design files
The KiCad project lives in the MarkWestbroek/MusicBrain repository on GitHub; these links point at the commit this page was built from.
MusicBrain VCA8 - 8x VCA slot card: common questions
How big is the MusicBrain VCA8 - 8x VCA slot card PCB?
The MusicBrain VCA8 - 8x VCA slot card measures 80 × 45 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MusicBrain VCA8 - 8x VCA slot card?
85 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the MusicBrain VCA8 - 8x VCA slot card design files?
From the MarkWestbroek/MusicBrain repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the MusicBrain VCA8 - 8x VCA slot card design in my own project?
Yes, under the terms of its MIT license, which MarkWestbroek chose for the repository.
More boards in MusicBrain
MusicBrain VCF8-kern - 8x multimode VCF
110 × 92 mm412 parts4LMIT0
NXPMusicBrain SPI-busboard v2
200 × 115 mm88 parts2LMIT0
GSwitch LOOP8 - 8x true bypass relaisloop
200 × 58 mm71 parts2LMIT0
GSwitch LOOP8-SH - 8x relaisloop compact (schroefklemmen)
150 × 44 mm69 parts2LMIT0
ESP32GSwitch BRAIN - ESP32-S3 hoofdbord
100 × 70 mm65 parts2LMIT0
MusicBrain MATRIX - 8-stemmige audio patchmatrix
175 × 142 mm63 parts4LMIT0
Musicbrain matrix c
154 × 133 mm63 parts4LMIT0
ESP32MusicBrain AXON - ESP32-S3 netbridge
70 × 45 mm48 parts2LMIT0
MusicBrain GATEIN8 - 8x gate in slot card
50 × 45 mm32 parts2LMIT0
Minimal dac
90 × 90 mm14 parts4LMIT0
Quad dac
90 × 90 mm14 parts4LMIT0
Similar boards
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2k
ButtonsLEDs
shanteacontrols
390 × 37 mm82 parts2LApache-2.0956
USB
52 × 12.6 mm6 parts2LApache-2.0956
Pots
390 × 93 mm75 parts2LApache-2.0956
PicoGUS Hand386
polpo
29.2 × 75.2 mm43 parts4LGPL-2.0800
Snark barker
schlae
231.1 × 106.7 mm193 parts2LNo license687