2 layers
4 layers62.2 × 46.5 mm
Bald DAC Wing
baldengineer/balddacDual Channel DAC Eval Board
- Size
- 62.2 × 46.5 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 49
- Nets
- 47
- Pads
- 206
- Tracks, vias
- 395, 99
- Pours
- 27
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 20 Sep 2026
- Updated
- 20 Sep 2026
Overview
Bald DAC Wing is an open-source printed circuit board by baldengineer, from the baldengineer/balddac repository on GitHub, published under the MIT licence. It is a 4-layer board of 62.2 × 46.5 mm with 49 parts on 47 nets, routed with 395 tracks and 99 vias.
It is built around the AD8065ARTZ-R2 and 74LVC1G04Z. Its parts include 13 capacitors, 12 connectors, 7 ICs, 4 resistors and 1 diode. It belongs with the audio and music boards of this library.
Main components
2
AD8065ARTZ-R2
SOT-23-5-100dB -40℃~+85℃ 1 1.5mV 145MHz 180V/us 1pA 1pA 2.6uV/℃ 24V 35mA 5V~24V 6.4mA 7nV/√Hz@10kHz Rail-to-Rail Output SOT-23-5 FET Input Amplifiers ROHSAnalog DevicesFET Input Amplifiers
74LVC1G04Z
SOT-553-40℃~+125℃ 1 1 1.65V~5.5V 1.7V~2V 200uA 32mA 32mA 5ns@5V,50pF 700mV~800mV 74LVC SOT-553 Inverters ROHSDiodes IncorporatedInverters
README
README.mdBald DAC Wing
Open hardware KiCad project for a two-channel, high-speed digital-to-analog converter (DAC) board.
The design is built around the Analog Devices AD5447 dual 12-bit multiplying current-output DAC and includes fast output amplification, a precision reference, digital interface logic, coaxial outputs, and test points. Revision 1 has been prepared for fabrication.
Features
- Dual 12-bit current-output DAC channels
- AD8065 high-speed output amplifier stages
- REF3425 2.5 V voltage reference
- Parallel digital interface with registered/control logic
- Separate coaxial outputs for DAC A and DAC B
- 3.3 V digital power and dedicated analog/reference power nets
- Four-layer PCB stackup with internal copper planes
- Custom KiCad symbols for project-specific parts
Status
Revision 1 was sent to fabrication.
License
This project is released under the MIT License.
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C5, C8, C9, C10 |
| 5 | TestPoint_Harwin | My Libraries:Harwin-S1751-46-Test-Point | TP5, TP6, TP8, TP10, TP11 |
| 4 | MountingHole_M2.5_Screw | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R69, R72, R73 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C12, C15 |
| 2 | 1.8p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7 |
| 2 | 100n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C13, C14 |
| 2 | 74LVC574APWR | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U4, U5 |
| 2 | AD8065ARTZ | Package_TO_SOT_SMD:SOT-23-5 | U2, U3 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R61 |
| 1 | 74LVC1G04 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | AD5447 | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U1 |
| 1 | BNC_A | My Libraries:Molex_73100-0105_BNC_RA | J8 |
| 1 | BNC_B | My Libraries:Molex_73100-0105_BNC_RA | J11 |
| 1 | BNC_Z | My Libraries:Molex_73100-0105_BNC_RA | J4 |
| 1 | Ctrl Debug | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J10 |
| 1 | DAC_A_Out | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | DAC_B_Out | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Data Debug High | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J9 |
| 1 | Data Debug Low | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J7 |
| 1 | Feather | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical | J6 |
| 1 | Feather Debug | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical | J13 |
| 1 | G*** | kibuzzard-6AB056B3 | kibuzzard-6AB056B3 |
| 1 | G*** | kibuzzard-6AB05686 | kibuzzard-6AB05686 |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | PwrA+ | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | REF3425 | Package_TO_SOT_SMD:SOT-23-6 | U7 |
| 1 | Z_Out | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
The 48 most common of 49 parts.
Questions
How big is the Bald DAC Wing PCB?
It measures 62.2 × 46.5 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Bald DAC Wing use?
49 parts, built around the AD8065ARTZ-R2 and 74LVC1G04Z. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Bald DAC Wing KiCad files?
From the baldengineer/balddac repository on GitHub, at the commit this page was made from: the board is Bald DAC Wing.kicad_pcb and its schematic Bald DAC Wing.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bald DAC Wing design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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