2 layers20 × 20 mm
2 layers46.7 × 20.3 mm
Soundkey
daimapi/soundkey1- Size
- 46.7 × 20.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 49
- Pads
- 164
- Tracks, vias
- 327, 51
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 15 Aug 2026
- Updated
- 15 Sep 2026
Overview
Soundkey is an open-source printed circuit board by daimapi, from the daimapi/soundkey repository on GitHub. It is a 2-layer board of 46.7 × 20.3 mm with 38 parts on 49 nets, routed with 327 tracks and 51 vias.
It is built around the TLV9001IDCK, PAM8301AAF and TP4057, with the AO3401A, CMC-4015-40P and WS2812B-2020 among its other parts. Its parts include 13 capacitors, 11 resistors, 5 connectors, 4 ICs and 2 diodes.
Main components
6
TLV9001IDCK
SC-70-5-2.75V~-900mV、900mV~2.75V -40℃~+125℃ 1 1.6mV 1.8V~5.5V 1MHz 2V/us 2pA 4.7nV/√Hz@1kHz 40mA 5pA 600nV/℃ 60uA 86dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SC-70-5 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
PAM8301AAF
SOT-23-6-40℃~+85℃ 1-Channel 1.5Wx1@8Ω 2.5V~5.5V 4mA 50dB 78dB 88% Class D Enable/shutdown function、Filterless architecture SOT-23-6 Audio Amplifiers ROHSDiodes IncorporatedAudio AmplifiersTP4057
SOT-23-6-40℃~+85℃ 1 25uA 4.24V 4V~6.5V Charging IC Lithium Battery Not supported SOT-23-6 Battery Management ROHSTECH PUBLICBattery Management
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsCMC-4015-40P
-MicrophonesCUI
WS2812B-2020
SMD,2.2x2mm0.6mA 0.84mm 120us 160mcd 200mcd 2kHz 2mm 2mm 300ns 470.4nm 515.6nm 520mcd 5V 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function Top-mount SMD,2.2x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C5, C14 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C7, C11 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C4, C10 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C9, C13 |
| 2 | 22k | Resistor_SMD:R_0402_1005Metric | R11, R12 |
| 2 | 5.1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2, R4 |
| 2 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C12 |
| 1 | 10uF | Capacitor_THT:C_Radial_D4.0mm_H5.0mm_P1.50mm | C8 |
| 1 | 15k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1 |
| 1 | 15k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 1N5819 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 470nF | Capacitor_SMD:C_0402_1005Metric | C15 |
| 1 | 680k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | AVR32DU28x-xSTX | 1_Library:VQFN-28-1EP_4x4mm_P0.4mm_EP2.7x2.7mm_ThermalVias | U1 |
| 1 | CMC-4015-40P | 1_Library:MIC_CMC-4015-40P | MK1 |
| 1 | PAM8301 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | TLV9001IDCK | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U4 |
| 1 | TP4057 | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | UPDI | TestPoint:TestPoint_Pad_D1.0mm | J5 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
| 1 | WS2812B-2020 | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D2 |
| 1 | button | Switch_Keyboard_Kailh:SW_Kailh_KH | J1 |
| 1 | daughter_Pad | 1_Library:Pad_7_1.5x2.0mm_G2.5mm | J2 |
| 1 | main_Pad | 1_Library:Pad_7_1.5x2.0mm_G2.5mm | J4 |
Questions
How big is the Soundkey PCB?
It measures 46.7 × 20.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Soundkey use?
38 parts, built around the TLV9001IDCK, PAM8301AAF, TP4057 and AO3401A. 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 Soundkey KiCad files?
From the daimapi/soundkey repository on GitHub, at the commit this page was made from: the board is soundkey.kicad_pcb and its schematic _restore_backup_2026-08-17T17-30-11-840/soundkey.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Soundkey design in my own project?
Its repository states no licence, so its author keeps all rights: ask daimapi before reusing the design.
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