18bit-DIT
About the 18bit-DIT PCB
18bit-DIT is an open source PCB design by vetal-esher, published on GitHub under the MIT license. It is a 2-layer board measuring 40.5 × 25.4 mm, with 22 components from 20 distinct parts.
Other key parts include the AK4103AVF. By type, the board carries 12 jumpers, 3 connectors, 3 capacitors, 2 resistors, 1 IC and 1 transformer.
It belongs with the audio and rf & radio designs in this gallery.
From the project
Adding digital output for old synths
Surely everyone who used to know DOS era met in games the choice of musical accompaniment - General MIDI, Roland Sound Canvas, Yamaha XG. I will not talk about what wonderful devices these are, and how well they played MIDI. Until the end of the 90s, all these home desktop romplers, like most other professional devices, had only analog outputs, however, they were quite acceptable in quality. In early 2010, out of nostalgia, I bought several devices of that era on ebay - these are the Roland Sound Canvas 88 Pro, Roland MT-32, Yamaha MU128 and Yamaha AN200. The first three should be familiar to…
Main components on the 18bit-DIT
18bit-DIT bill of materials (BOM)
22 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AK4103AVF | TSSOP-24_6.1x7.8mm_P0.65mm | U1 |
| 1 | D_IN | PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | reset | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | spdif | TerminalBlock_bornier-2_P5.08mm | J3 |
| 1 | fs0 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | fs1 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | fs2 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | fs3 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | bls | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP5 |
| 1 | dif2 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP6 |
| 1 | cks1 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP7 |
| 1 | dif1 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP8 |
| 1 | dif0 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP9 |
| 1 | ans | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP10 |
| 1 | cks0 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP11 |
| 1 | trans | SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP12 |
| 1 | PE-65612NL | PE65612NL | T1 |
| 3 | 100nF | C_0603_1608Metric | C1, C2, C3 |
| 1 | 330R | R_0402_1005Metric | R1 |
| 1 | 100R | R_0402_1005Metric | R2 |
18bit-DIT design files
The KiCad project lives in the vetal-esher/18bit-DIT repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/18bit-DIT.kicad_pcb
- Schematichardware/18bit-DIT.kicad_sch
18bit-DIT: common questions
How big is the 18bit-DIT PCB?
The 18bit-DIT measures 40.5 × 25.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 18bit-DIT?
22 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the 18bit-DIT design files?
From the vetal-esher/18bit-DIT repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 18bit-DIT design in my own project?
Yes, under the terms of its MIT license, which vetal-esher chose for the repository.
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