Rcbus opl3
About the Rcbus opl3 PCB
Rcbus opl3 is an open source PCB design by electrified, published on GitHub. It is a 2-layer board measuring 100 × 50 mm, with 32 components from 16 distinct parts.
Other key parts include the TL074CDT, YAC512, CD74HCT688M96 and YMF262. By type, the board carries 13 capacitors, 11 resistors, 4 ICs, 2 connectors, 1 crystal and 1 jumper.
From the project
An OPL3 sound card for RC2014/RCBus based computers, based on the Yamaha YMF262 and YAC512 ICs.
An OPL3 sound card for RC2014/RCBus based computers, based on the Yamaha YMF262 and YAC512 ICs.
A stencil was ordered to go along with the PCB to allow solder paste to be used and to do reflow soldering on a hotplate - this worked well.
I opted for the cheapest post option, and it was still pretty speedy to the UK, I'm not sure I'd bother paying for one of the more expensive options unless I was really in a rush.
Main components on the Rcbus opl3
Rcbus opl3 bill of materials (BOM)
32 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL074CDT TL074 | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | YAC512 | SOP-16_4.55x10.3mm_P1.27mm | U2 |
| 1 | CD74HCT688M96 74HCT688 | SOIC-20W_7.5x12.8mm_P1.27mm | U3 |
| 1 | YMF262 | SOP-24_7.5x15.4mm_P1.27mm | U4 |
| 1 | MCSJK-6NC1-14.31818-25-B 14.3181MHz | Oscillator_SMD_Abracon_ASV-4Pin_7.0x5.1mm | Y1 |
| 1 | FC68131 3.5mm jack | Headphone_Jack_3.5mm_5_pin | CON1 |
| 1 | 61304011021 1x39 pin header | PinHeader_1x39_P2.54mm_Vertical | P1 |
| 1 | M20-9980346 2x06 pin header | PinHeader_2x06_P2.54mm_Vertical | JP1 |
| 4 | EDK106M035A9BAA 10uF | CP_Elec_6.3x5.8 | C1, C2, C7, C10 |
| 2 | MC0603N272J500CT 2.7nF | C_0603_1608Metric | C3, C4 |
| 5 | MC0603B104M250CT 0.1uF | C_0603_1608Metric | C5, C8, C11, C12, C13 |
| 1 | MC0603N680J500CT 68pF | C_0603_1608Metric | C6 |
| 1 | EDK107M035A9HAA 100uF | CP_Elec_6.3x7.7 | C9 |
| 1 | MCWR06X33R0FTL 33 | R_0603_1608Metric | R1 |
| 8 | MCWR06X1002FTL 10K | R_0603_1608Metric | R2, R5, R6, R7, R8, R9, R10, R11 |
| 2 | MCWR06X1000FTL 100 | R_0603_1608Metric | R3, R4 |
Rcbus opl3 design files
The KiCad project lives in the electrified/rcbus-opl3 repository on GitHub; these links point at the commit this page was built from.
- Layoutrcbus-opl3.kicad_pcb
- Schematicrcbus-opl3.kicad_sch
Rcbus opl3: common questions
How big is the Rcbus opl3 PCB?
The Rcbus opl3 measures 100 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Rcbus opl3?
32 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the Rcbus opl3 design files?
From the electrified/rcbus-opl3 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Rcbus opl3 design in my own project?
The repository has no license, so all rights stay with electrified. Use it as a reference, and ask the author before reusing the design.