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NOS R-2R DAC

k16shikano·r2r-dac·kicad/BACKPLANE/BACKPLANE.kicad_pcb

NOS R-2R DAC PCB layout, top view — open source board by k16shikano
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About the NOS R-2R DAC PCB

NOS R-2R DAC is an open source PCB design by k16shikano, published on GitHub. It is a 4-layer board measuring 250 × 75 mm, with 7 components from 1 distinct parts.

From the project

16ビットR-2RラダーによるDAコンバーターの設計

- TOSリンク（S/PDIF）からの44.1kHz入力 - ノンオーバーサンプリング - 左右2チャンネル - カードケージ構成（同一回路を1枚にまとめた SINGLEBOARD` あり）

DACCHANNEL と DACCHANNELAXIAL は同一の電気設計**で、S3 / S5 のどちらにも挿さります。 ラダー抵抗の実装方法だけが違います。

SINGLEBOARD もカードケージと同一の電気設計です。JBP とバックプレーンは無く、 R チャネルは 8xxx 参照（U8001 など）。±VREF はチャネルごとにローカル生成のままです。 信号層は F.Cu / In2.Cu / In3.Cu / B.Cu、In1.Cu と In4.Cu が GND ベタ（ラダー下は抜き）。 JRAW ヘッダ（J401 / J402` およびチャネル側）は基板上配線のタップとして残しています。

NOS R-2R DAC bill of materials (BOM)

7 components, 1 distinct parts — part numbers from the project's BOM.

QtyPartRefs
7
JBP_2x18_AB
J801, J802, J803, J804, J805, J806, J807

NOS R-2R DAC design files

The KiCad project lives in the k16shikano/r2r-dac repository on GitHub; these links point at the commit this page was built from.

NOS R-2R DAC: common questions

How big is the NOS R-2R DAC PCB?

The NOS R-2R DAC measures 250 × 75 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the NOS R-2R DAC?

7 components, from 1 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 NOS R-2R DAC design files?

From the k16shikano/r2r-dac 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 NOS R-2R DAC design in my own project?

The repository has no license, so all rights stay with k16shikano. Use it as a reference, and ask the author before reusing the design.

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