2 layers57.3 × 19 mm
2 layers99.1 × 53.3 mm
ABBlind
UC3Music/ABBlind3Device to make random blind tests to audio equipment
- Size
- 99.1 × 53.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 51
- Pads
- 116
- Tracks, vias
- 387, 3
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 9 Nov 2015
- Updated
- 12 Mar 2019
Overview
ABBlind is an open-source printed circuit board by UC3Music, from the UC3Music/ABBlind repository on GitHub. It is a 2-layer board of 99.1 × 53.3 mm with 26 parts on 51 nets, routed with 387 tracks and 3 vias.
It is built around the TS5A22364DGS. Its parts include 6 resistors, 5 capacitors, 3 ICs, 3 diodes and 3 connectors. It belongs with the audio and music boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdABBlind
Device to make random blind tests to audio equipment.
Why to spend lots of money in audiophile quality devices when you cannot tell the different from a more affordable device? ABBlind allows you to make blind tests for you to try to distinguish between two audio devices. It will randomly present you channels A and B, without telling you which channel are you listening to until you have heard three samples. Then, it will tell you in which order you listened to devices A and B.
As it is based on Arduino, you can modify ABBlind to add custom testing modes and more functionality.
v0.1 Prototype
Assembled
PCBs
Firmware
mbed version
Sources available at: https://developer.mbed.org/users/def/code/ABBlind_hardware_test/
Credits
- Author: David Estevez Fernandez
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | R | Resistors_SMD:R_0805_HandSoldering | R1, R2, R3, R4, R5, R6 |
| 3 | JACK_FEMALE_STEREO_6_PINS | kicad-library:Conn_Jack_Female_635_THD | J1, J2, J3 |
| 3 | LED_BICOLOR | def-footprints:Led_3528_Dual_SMD | D1, D2, D3 |
| 2 | 0.1uF | Capacitors_SMD:C_0805_HandSoldering | C4, C5 |
| 2 | SW_PUSH | kicad-library:Switches-Push_switch_THD | SW1, SW2 |
| 2 | TS5A22364 | def-footprints:VSSOP10 | U1, U2 |
| 1 | 0.1-1uF X5R | Capacitors_SMD:C_0805_HandSoldering | C2 |
| 1 | 1uF X5R | Capacitors_SMD:C_0805_HandSoldering | C3 |
| 1 | ARDUINO_UNO | def-footprints:Board_Arduino_Pinout | BRD1 |
| 1 | C | Capacitors_SMD:C_0805_HandSoldering | C1 |
| 1 | LOGO | def-footprints:logo_text_uc3music | G*** |
| 1 | LOGO | def-footprints:logo_guitar_uc3music | G*** |
| 1 | LOGO | def-footprints:logo_uc3music | G*** |
| 1 | TLV70033DDCT | kicad-library:SOT-23-5 | U3 |
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Questions
How big is the ABBlind PCB?
It measures 99.1 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ABBlind use?
26 parts, built around the TS5A22364DGS. 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 ABBlind KiCad files?
From the UC3Music/ABBlind repository on GitHub, at the commit this page was made from: the board is hardware/ABBlind.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ABBlind design in my own project?
Its repository states no licence, so its author keeps all rights: ask UC3Music before reusing the design.