2 layers316 × 119 mm
Teensy Grovebox
jerry20091103/Teensy_Grovebox
A portable synth and music multi-tool made with Teensy 4.1
142 parts150MIT
2 layers21.3 × 28.7 mm
Polihack
Polyche/Polihack_HushFirst Place for an Active Noice Cancelling Speaker project done at Polihack V16
- Size
- 21.3 × 28.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 53
- Pads
- 112
- Tracks, vias
- 134, 32
- Pours
- 85
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 1 Mar 2025
- Updated
- 1 Mar 2025
Overview
Polihack is an open-source printed circuit board by Polyche, from the Polyche/Polihack_Hush repository on GitHub. It is a 2-layer board of 21.3 × 28.7 mm with 16 parts on 53 nets, routed with 134 tracks and 32 vias.
It is built around the PAM8403DR and TL072. Its parts include 4 capacitors, 4 ICs, 3 resistors, 2 connectors and 1 crystal. It belongs with the STM32 boards of this library.
Main components
2
PAM8403DR
SOIC-16-40℃~+85℃ -59dB 0.15% 2 Single-Ended Inputs 2-Channel 2.8V~5.5V 3Wx2@4Ω 80dB 87% 8mA Class D Filterless architecture SOIC-16 Audio Amplifiers ROHSDiodes IncorporatedAudio Amplifiers
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
README
README.mdPoliHackV16Arrow
Polihack_Hush
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | Speaker | TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x02_P3.50mm_Horizontal | LS1, LS2 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | Battery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J2 |
| 1 | Crystal | Crystal:Crystal_SMD_2012-2Pin_2.0x1.2mm | Y1 |
| 1 | LM78L05_TO92 | Package_TO_SOT_SMD:SOT-223 | U4 |
| 1 | Microphone connector | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1 |
| 1 | PAM8403D | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | TL072 | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm_ThermalVias | U2 |
Questions
How big is the Polihack PCB?
It measures 21.3 × 28.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Polihack use?
16 parts, built around the PAM8403DR and TL072. 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 Polihack KiCad files?
From the Polyche/Polihack_Hush repository on GitHub, at the commit this page was made from: the board is polihack/polihack.kicad_pcb and its schematic polihack/polihack.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Polihack design in my own project?
Its repository states no licence, so its author keeps all rights: ask Polyche before reusing the design.
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