2 layers108.9 × 47.3 mm
PowerBankPD
NgxLuis/30W-PD-Power-Bank
PCB design - 30W High-Performance Power Bank utilizing SW3518, IP2326, and BM3451 for a 3S 21700 battery pack.
105 parts1MIT
2 layers58.2 × 107.4 mm
Headphones
williamthayer/OpenPhonesOpensource Headphones
- Size
- 58.2 × 107.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 66
- Pads
- 211
- Tracks, vias
- 0, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Sep 2024
- Updated
- 6 Dec 2024
Overview
Headphones is an open-source printed circuit board by williamthayer, from the williamthayer/OpenPhones repository on GitHub. It is a 2-layer board of 58.2 × 107.4 mm with 52 parts on 66 nets.
It is built around the MAX9744ETH+T, IP2326 and USB4105-GF-A. Its parts include 25 capacitors, 16 resistors, 4 ICs, 1 connector and 1 inductor. It belongs with the audio and music boards and the ESP32 and RISC-V boards of this library.
Main components
3
MAX9744ETH+T
TQFN-44(7x7)-40℃~+85℃ 0.04% 2-Channel 20Wx2@4Ω 35mA 4.5V~14V 75dB 91dB 93% Automatic mute/no-noise switch、Enable/shutdown function、Filterless architecture、Digitally programmable gain、Analog voltage gain Class D TQFN-44(7x7) Audio Amplifiers ROHSMaxim Integrated (Analog Devices)Audio Amplifiers
IP2326
VQFN-24-EP(4x4)-40℃~+150℃ 1.5A 2~3 4.5V~9.5V 700nA 8.4V Charging IC、Balancing IC Support VQFN-24-EP(4x4) Battery Management ROHSINJOINICBattery Management
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nf 63v | Capacitor_SMD:C_0805_2012Metric | C8, C9, C11, C12, C15 |
| 5 | 47uf 16v | Capacitor_SMD:C_1210_3225Metric | C6, C7, C10, C13, C14 |
| 4 | clipboard:481d829e-8df2-4d8c-86dd-5558698f89fa | , , , | |
| 4 | .1uf | Capacitor_SMD:C_0805_2012Metric | C21, C22, C23, C24 |
| 4 | 20k | Resistor_SMD:R_0805_2012Metric | R13, R14, R15, R16 |
| 2 | .1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | .47uF | Capacitor_SMD:C_0805_2012Metric | C16, C17 |
| 2 | 100R | Resistor_SMD:R_0805_2012Metric | R9, R12 |
| 2 | 1R | Resistor_SMD:R_1206_3216Metric | R7, R8 |
| 2 | 1uf | Capacitor_SMD:C_0805_2012Metric | C18, C19 |
| 2 | 220K | Resistor_SMD:R_0805_2012Metric | R10, R11 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 1 | .5R | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 100uf 16v | Capacitor_SMD:C_1210_3225Metric | C20 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 120k | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C25 |
| 1 | 2.2uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 5.1k | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 51k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 60k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 68k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | IP2326 | Package_DFN_QFN:HVQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | IC1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_Pad1.0x1.5mm | JP1 |
| 1 | MAX9744ETH+T | SamacSys_Parts:QFN50P700X700X80-45N | IC2 |
| 1 | MOUDLE-SEEEDUINO-XIAO-ESP32C3 | Arduino:MOUDLE14P-SMD-2.54-21X17.8MM | U1 |
| 1 | UDA1334ATS_N2,118 | SamacSys_Parts:SOP65P640X150-16N | IC3 |
| 1 | USB4105-GF-A | SamacSys_Parts:GCT_USB4105-GF-A | J2 |
Questions
How big is the Headphones PCB?
It measures 58.2 × 107.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Headphones use?
52 parts, built around the MAX9744ETH+T, IP2326 and USB4105-GF-A. 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 Headphones KiCad files?
From the williamthayer/OpenPhones repository on GitHub, at the commit this page was made from: the board is Headphones-backups/Headphones-2024-11-27_114016/Headphones.kicad_pcb and its schematic Headphones-backups/Headphones-2024-11-27_114016/Headphones.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Headphones design in my own project?
Its repository states no licence, so its author keeps all rights: ask williamthayer before reusing the design.
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