4 layers95.2 × 112.5 mm
2 layers
Audio amp
shBLOCK/WorldCube1- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 18
- Pads
- 47
- Tracks, vias
- 50, 8
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Jul 2025
- Updated
- 11 Mar 2026
Overview
Audio amp is an open-source printed circuit board by shBLOCK, from the shBLOCK/WorldCube repository on GitHub. It is a 2-layer board with 16 parts on 18 nets, routed with 50 tracks and 8 vias.
It is built around the PAM8406DR and BLM21PG221SN1D. Its parts include 8 capacitors, 4 resistors and 1 IC. It belongs with the audio and music boards of this library.
Main components
2
PAM8406DR
SOIC-16-40℃~+85℃ -70dB 0.11% 10mA 2 Single-Ended Inputs 2-Channel 2.5V~5.5V 5Wx2@2Ω 90% 90dB Automatic mute/no-noise switch、Enable/disable function、Filterless architecture、Configurable output topology Class AB、Class D SOIC-16 Audio Amplifiers ROHSDiodes IncorporatedAudio Amplifiers
BLM21PG221SN1D
08051 220Ω@100MHz 2A 45mΩ ±25% 0805 Ferrite Beads ROHSMurataFerrite Beads
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10u | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C7 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R2, R4 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 2.2n | Capacitor_SMD:C_0603_1608Metric | C6, C8 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R1, R3 |
| 2 | BLM21PG221SN1D | Inductor_SMD:L_0805_2012Metric | FB1, FB2 |
| 1 | AMP_MODE | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | PAM8406D | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
Questions
What parts does the Audio amp use?
16 parts, built around the PAM8406DR and BLM21PG221SN1D. 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 Audio amp KiCad files?
From the shBLOCK/WorldCube repository on GitHub, at the commit this page was made from: the board is pcb/WorldCubeProtoV1/audio_amp.kicad_pcb and its schematic pcb/WorldCubeProtoV1/WorldCubeProtoV1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Audio amp design in my own project?
Its repository states no licence, so its author keeps all rights: ask shBLOCK before reusing the design.
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